Firearms unit
Encyclopedia
A firearms unit is a specialised, armed unit within each territorial police force
Territorial police force
The phrase Territorial Police Force varies in precise meaning according to the country to which it is related, generally distinguishing a force whose area of responsibility is defined by sub-national boundaries from others which deal with the entire country or a restricted range of...

 in the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

. For the most part, the police forces of the United Kingdom are unarmed; however, all have firearms units to provide the police force with the capability to deal with armed criminals. A police officer
Police officer
A police officer is a warranted employee of a police force...

 cannot apply to join the firearms unit without first finishing their two year probationary period
Probation (workplace)
In a workplace setting, probation is a status given to new employees of a company or business.It is widely termed as Probation Period of an employee...

, with a further two years in a core policing role. Firearms unit is the most common name outside of the capital, while that of London
Greater London
Greater London is the top-level administrative division of England covering London. It was created in 1965 and spans the City of London, including Middle Temple and Inner Temple, and the 32 London boroughs. This territory is coterminate with the London Government Office Region and the London...

's Metropolitan Police Service
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

 is called the Specialist Firearms Command
Specialist Firearms Command
Central Operations Specialist Firearms Command is a Central Operations branch within Greater London's Metropolitan Police Service. The Command is responsible for providing a firearms-response capability, assisting the rest of the service, which is normally unarmed...

, or CO19. Within the media
News media
The news media are those elements of the mass media that focus on delivering news to the general public or a target public.These include print media , broadcast news , and more recently the Internet .-Etymology:A medium is a carrier of something...

 it is sometimes compared to the SWAT
SWAT
A SWAT team is an elite tactical unit in various national law enforcement departments. They are trained to perform high-risk operations that fall outside of the abilities of regular officers...

 units of the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

.

Criminals are less likely to carry firearms due to United Kingdom gun laws
Gun politics in the United Kingdom
Gun politics in the United Kingdom generally places its main considerations on how best to ensure public safety and how deaths involving firearms can most effectively be prevented. The United Kingdom has one of the lowest rates of gun homicides in the world, and did so even before strict gun...

, and the presence of an armed officer can often be enough to negotiate their surrender. One particular British police force has only had to use a firearm against a suspect once in its entire history.

Only three forces in the United Kingdom routinely arm officers due to the nature of their work; the Ministry of Defence Police
Ministry of Defence Police
The Ministry of Defence Police is a civilian police force which is part of the United Kingdom's Ministry of Defence. The force is part of the larger government agency, the Ministry of Defence Police and Guarding Agency , together with the Ministry of Defence Guard Service...

 who are responsible law enforcement
Law enforcement agency
In North American English, a law enforcement agency is a government agency responsible for the enforcement of the laws.Outside North America, such organizations are called police services. In North America, some of these services are called police while others have other names In North American...

 on MOD
Ministry of Defence (United Kingdom)
The Ministry of Defence is the United Kingdom government department responsible for implementation of government defence policy and is the headquarters of the British Armed Forces....

 property, the Civil Nuclear Constabulary
Civil Nuclear Constabulary
The Civil Nuclear Constabulary is a special police force responsible for providing law enforcement and security at civil nuclear installations, and for nuclear materials in transit, throughout the United Kingdom....

 who guard civil nuclear
Nuclear energy policy
Nuclear energy policy is a national and international policy concerning some or all aspects of nuclear energy, such as mining for nuclear fuel, extraction and processing of nuclear fuel from the ore, generating electricity by nuclear power, enriching and storing spent nuclear fuel and nuclear fuel...

 facilities, and the Police Service of Northern Ireland
Police Service of Northern Ireland
The Police Service of Northern Ireland is the police force that serves Northern Ireland. It is the successor to the Royal Ulster Constabulary which, in turn, was the successor to the Royal Irish Constabulary in Northern Ireland....

.

History

Police use of firearms
Police use of firearms in the United Kingdom
In the United Kingdom, the majority of police officers do not carry firearms, except in special circumstances. This originates from the formation of the Metropolitan Police Service in the 19th century, when police were not armed, partly to counter public fears and objections concerning armed...

 has been a slow and controversial process, usually due to resistance from senior officers
Chief police officer
Chief police officer is a phrase used in the United Kingdom to describe the position held by the most senior police officer in a police force. It refers to either one of the 53 Chief Constables, the Commissioner of the City of London Police or the Commissioner of the Metropolitan Police. Such...

 regarding firearms and adverse reactions from the public. During the Second World War
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

, firearms were only carried on protection duties, such as guarding Downing Street
10 Downing Street
10 Downing Street, colloquially known in the United Kingdom as "Number 10", is the headquarters of Her Majesty's Government and the official residence and office of the First Lord of the Treasury, who is now always the Prime Minister....

, Buckingham Palace
Buckingham Palace
Buckingham Palace, in London, is the principal residence and office of the British monarch. Located in the City of Westminster, the palace is a setting for state occasions and royal hospitality...

 and locations at risk from enemy sabotage
Sabotage
Sabotage is a deliberate action aimed at weakening another entity through subversion, obstruction, disruption, or destruction. In a workplace setting, sabotage is the conscious withdrawal of efficiency generally directed at causing some change in workplace conditions. One who engages in sabotage is...

. However, the police were supplied with many firearms such as the Canadian Ross Rifle
Ross rifle
The Ross rifle was a straight-pull bolt-action 0.303 inch calibre rifle produced in Canada from 1903 until the middle of the First World War....

 and P14 Enfield as part of the anti-invasion preparations of World War II
British anti-invasion preparations of World War II
British anti-invasion preparations of the Second World War entailed a large-scale division of military and civilian mobilisation in response to the threat of invasion by German armed forces in 1940 and 1941. The British army needed to recover from the defeat of the British Expeditionary Force in...

. Due to equipment shortages, firearms issued to the police were often in poor condition and sometimes lacked a holster to accommodate the weapon, leading to them being concealed in the uniform tunic or tucked in the waistline
Waistline (clothing)
The waistline is the line of demarcation between the upper and lower portions of a garment, which notionally corresponds to the natural waist but may vary with fashion from just below the bust to below the hips. The waistline of a garment is often used to accentuate different features...

 of the trouser. In the years following the Second World War, training for the standard issue Webley & Scott revolver
Webley Revolver
The Webley Revolver was, in various marks, the standard issue service pistol for the armed forces of the United Kingdom, the British Empire, and the Commonwealths from 1887 until 1963.The Webley is a top-break revolver with automatic extraction...

 consisted of firing six shots, to pass, it was required that three shots be on target. Loading, unloading and safe handling of the weapon was not usually taught. During the same period, the police had an increased amount of ex-servicemen
Veteran
A veteran is a person who has had long service or experience in a particular occupation or field; " A veteran of ..."...

 joining the ranks, and their previous knowledge was treated to suffice leading to them being issued with firearms without police training, in an emergency. An example of this, was when the police mounted a large scale search
Manhunt (law enforcement)
In law enforcement, a manhunt is a search for a dangerous fugitive involving the use of all available police units and technology and sometimes help from the public....

 following the Shepherd's Bush murders, firearms were issued to any officer who had previous experience of their use, such as officers that attended shooting clubs or ex-members of the armed forces.

The Metropolitan Police
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

 was formed on the 29 September 1829, with the passing of the Metropolitan Police Act
Metropolitan Police Act 1829
The Metropolitan Police Act 1829 was an Act of Parliament introduced by Sir Robert Peel and passed by the Parliament of the United Kingdom. The Act established the Metropolitan Police of London , replacing the previously disorganized system of parish constables and watchmen...

. The officers of the 'new police' were unarmed to counter fears of a paramilitary
Paramilitary
A paramilitary is a force whose function and organization are similar to those of a professional military, but which is not considered part of a state's formal armed forces....

 organisation. Despite this, Home Secretary
Home Secretary
The Secretary of State for the Home Department, commonly known as the Home Secretary, is the minister in charge of the Home Office of the United Kingdom, and one of the country's four Great Offices of State...

 Sir Robert Peel
Robert Peel
Sir Robert Peel, 2nd Baronet was a British Conservative statesman who served as Prime Minister of the United Kingdom from 10 December 1834 to 8 April 1835, and again from 30 August 1841 to 29 June 1846...

 gave the Commissioner
Commissioner of Police of the Metropolis
The Commissioner of Police of the Metropolis is the head of London's Metropolitan Police Service, classing the holder as a chief police officer...

 authorisation to purchase fifty flintlock pocket pistols
Flintlock
Flintlock is the general term for any firearm based on the flintlock mechanism. The term may also apply to the mechanism itself. Introduced at the beginning of the 17th century, the flintlock rapidly replaced earlier firearm-ignition technologies, such as the doglock, matchlock and wheellock...

 for use in in exceptional circumstances. As time progressed, the flintlocks were decommissioned, being superseded by early revolver
Revolver
A revolver is a repeating firearm that has a cylinder containing multiple chambers and at least one barrel for firing. The first revolver ever made was built by Elisha Collier in 1818. The percussion cap revolver was invented by Samuel Colt in 1836. This weapon became known as the Colt Paterson...

s. During the 1880s, burglary
Burglary
Burglary is a crime, the essence of which is illicit entry into a building for the purposes of committing an offense. Usually that offense will be theft, but most jurisdictions specify others which fall within the ambit of burglary...

 (or "house breaking" as it was then called") was a common problem for police. "House breakers" often carried firearms, due to the law of the day permitting members of the public to own firearms. After a series of fatal shootings of officers on the outer divisions
Police division
A division was the usual term for the largest territorial subdivision of most British police forces. In major reforms of police organisation in the 1990s divisions of many forces were restructured and retitled Basic Command Units , although some forces continue to refer to them as divisions.The...

 of the Metropolis
Metropolitan Police District
The Metropolitan Police District is the police area which is policed by London's Metropolitan Police Service. It currently consists of Greater London, excluding the City of London.-History:...

, and after much press coverage debating whether the service should be routinely armed, the Commissioner applied to the Home Secretary for authorisation to allow officers on the outer districts to carry a revolver if they wished to at night. A revolver could only be issued if, in the opinion of the senior officer, the officer could be trusted to use it safely and with discretion. From then on, all officers who felt the need to be armed, could be so. The practice lasted until 1936, although the vast majority of the system was phased out by the end of the 19th century.

During the late 19th century, revolvers were issued to divisional police station
Police station
A police station or station house is a building which serves to accommodate police officers and other members of staff. These buildings often contain offices and accommodation for personnel and vehicles, along with locker rooms, temporary holding cells and interview/interrogation rooms.- Facilities...

s. The amount of revolvers stored at the station depended on its size, and geographical location. In the Metropolitan Police
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

 the issue of firearms to stations was standardised with; ten pistols with 320 rounds of ammunition issued to divisional stations, six pistols with 192 rounds per sub-divisional station, and three pistols with 96 rounds to each section station. The firearms were kept in a locked box, with rules of their use attached to the front of it. The key to the box was held by a senior officer, and their permission had to be sought before the box could be opened. Rules of their use dictated that if the revolvers were to be issued, the names of the officers who they were allocated to be recorded, and they be checked of their condition and loaded by the Section Sergeant when the officers paraded for duty.

In 1948, concerns were aired by the Home Office
Home Office
The Home Office is the United Kingdom government department responsible for immigration control, security, and order. As such it is responsible for the police, UK Border Agency, and the Security Service . It is also in charge of government policy on security-related issues such as drugs,...

 over the civil police's role if there were to be another war, invasion
Invasion
An invasion is a military offensive consisting of all, or large parts of the armed forces of one geopolitical entity aggressively entering territory controlled by another such entity, generally with the objective of either conquering, liberating or re-establishing control or authority over a...

 or the newly posed threat of nuclear attack
Nuclear warfare
Nuclear warfare, or atomic warfare, is a military conflict or political strategy in which nuclear weaponry is detonated on an opponent. Compared to conventional warfare, nuclear warfare can be vastly more destructive in range and extent of damage...

. The government dictated that the role of the police would still be to maintain law and order, even in times of emergency. However, despite the police not being a combatant
Combatant
A combatant is someone who takes a direct part in the hostilities of an armed conflict. If a combatant follows the law of war, then they are considered a privileged combatant, and upon capture they qualify as a prisoner of war under the Third Geneva Convention...

 force, in the event of war they were to have an offensive capability assisting the Armed Forces
British Armed Forces
The British Armed Forces are the armed forces of the United Kingdom of Great Britain and Northern Ireland.Also known as Her Majesty's Armed Forces and sometimes legally the Armed Forces of the Crown, the British Armed Forces encompasses three professional uniformed services, the Royal Navy, the...

. It was decided that to be successful in this role, the police needed to be issued firearms. The Ministry of Defence
Ministry of Defence (United Kingdom)
The Ministry of Defence is the United Kingdom government department responsible for implementation of government defence policy and is the headquarters of the British Armed Forces....

 loaned Sten submachine guns, along with a number of Lee Enfield No4 bolt action rifles. These, along with Webley & Scott revolvers
Webley Revolver
The Webley Revolver was, in various marks, the standard issue service pistol for the armed forces of the United Kingdom, the British Empire, and the Commonwealths from 1887 until 1963.The Webley is a top-break revolver with automatic extraction...

 and ammunition
Ammunition
Ammunition is a generic term derived from the French language la munition which embraced all material used for war , but which in time came to refer specifically to gunpowder and artillery. The collective term for all types of ammunition is munitions...

 were kept in secret depots around the United Kingdom, with the locations known by senior officers, so each force had access to them if required.

Before the 1970s, rules regarding operational use of firearms dictated that they were to be worn in a holster on the duty belt
Police duty belt
Police duty belt is a belt, typically constructed of nylon or leather used by police and security officers to carry equipment easily, in a readily-accessible manner, while leaving the hands free to interact.- History :Many police forces in the United Kingdom began with a uniform consisting of a...

, concealing the weapon until drawn. The rule was revised when armed police officers began to carry firearms other than pistols, the size of which meant they could not be concealed. The first instance of this was when armed airport officers of the Metropolitan Police Aviation Security OCU
Aviation Security Operational Command Unit
The Aviation Security Operational Command Unit is a Specialist Operations unit of London's Metropolitan Police Service. The unit is responsible for providing law enforcement and security for both Heathrow and London City airports...

 were issued with the newly sanctioned, Heckler & Koch MP5
Heckler & Koch MP5
The Heckler & Koch MP5 is a 9mm submachine gun of German design, developed in the 1960s by a team of engineers from the German small arms manufacturer Heckler & Koch GmbH of Oberndorf am Neckar....

 semi-automatic carbine
Semi-automatic firearm
A semi-automatic, or self-loading firearm is a weapon which performs all steps necessary to prepare the weapon to fire again after firing—assuming cartridges remain in the weapon's feed device or magazine...

.

Before a major reconstruction of the rules regarding operational use of firearms, high ranking officers such as Chief Inspectors or Superintendents could authorise firearms officers
Authorised Firearms Officer
An Authorised Firearms Officer is a British police officer who has received training and authorisation to carry and use firearms. The designation is significant because within the United Kingdom, police officers do not routinely carry firearms...

 to draw weapons from an ARV
Armed Response Vehicle
An armed response vehicle is a type of police car operated by the British police. ARVs are crewed by Authorised Firearms Officers to respond to emergency telephone calls believed to involve firearms or other high-risk situations...

, in the event of an "immediate threat to life". In a less threatening situation, authorisation had to be gained from an on-call senior officer
Chief police officer
Chief police officer is a phrase used in the United Kingdom to describe the position held by the most senior police officer in a police force. It refers to either one of the 53 Chief Constables, the Commissioner of the City of London Police or the Commissioner of the Metropolitan Police. Such...

 of the Association of Chief Police Officers
Association of Chief Police Officers
The Association of Chief Police Officers , established in 1948, is a private limited company that leads the development of policing practice in England, Wales and Northern Ireland.ACPO provides a forum for chief police officers to share ideas and coordinates the strategic...

. The difficulty of this authorisation was realised, as desired officers were not always available. The decision to draw firearms from the secure cabinet in the rear of the ARV now rests upon the individual judgement of the firearms officer, with personal side arm
Side arm
A side arm is a weapon, usually a pistol but can be a dagger, as used in pre-modern times, which is worn on the body in a holster to permit immediate access and use. A side arm is typically required equipment for military personnel and sometimes carried by law enforcement personnel...

s being carried on each member as a matter of routine. For pre-planned operations, a designated senior officer can authorise the deployment of carbines. Intervention from Specialist Firearms Officer
Specialist Firearms Officer
A Specialist Firearms Officer is a British Police officer who has undergone training in the use of police firearms, and therefore is authorised to carry and when necessary use a firearm to prevent an immediate threat to life. All SFOs first train as Authorised Firearms Officers which crew armed...

s requires authorisation from the Home Office
Home Office
The Home Office is the United Kingdom government department responsible for immigration control, security, and order. As such it is responsible for the police, UK Border Agency, and the Security Service . It is also in charge of government policy on security-related issues such as drugs,...

 before the Chief Constable
Chief Constable
Chief constable is the rank used by the chief police officer of every territorial police force in the United Kingdom except for the City of London Police and the Metropolitan Police, as well as the chief officers of the three 'special' national police forces, the British Transport Police, Ministry...

 of the force can deploy them.

Before the creation of Authorised Firearms Officer
Authorised Firearms Officer
An Authorised Firearms Officer is a British police officer who has received training and authorisation to carry and use firearms. The designation is significant because within the United Kingdom, police officers do not routinely carry firearms...

 and Specialist Firearms Officer
Specialist Firearms Officer
A Specialist Firearms Officer is a British Police officer who has undergone training in the use of police firearms, and therefore is authorised to carry and when necessary use a firearm to prevent an immediate threat to life. All SFOs first train as Authorised Firearms Officers which crew armed...

 roles, each large police station
Police station
A police station or station house is a building which serves to accommodate police officers and other members of staff. These buildings often contain offices and accommodation for personnel and vehicles, along with locker rooms, temporary holding cells and interview/interrogation rooms.- Facilities...

 had a small number of "authorised shots" (as they were then called). trained in the use of firearms. Until needed, the "authorised shots" carried out routine policing duties. After the formation of firearms units, all trained officers in each force were brought together under one unit, with a structured training programme headed by senior officers. The concept of Armed Response Vehicle
Armed Response Vehicle
An armed response vehicle is a type of police car operated by the British police. ARVs are crewed by Authorised Firearms Officers to respond to emergency telephone calls believed to involve firearms or other high-risk situations...

s were not introduced until 1991, being first transitioned in London
London
London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

.

Within London's Metropolitan Police
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

, "authorised shots" were not completely phased out after the creation of AFO and SFO. Within London, sieges involving a terrorist objective or required specialist entry was dealt with by D11
Specialist Firearms Command
Central Operations Specialist Firearms Command is a Central Operations branch within Greater London's Metropolitan Police Service. The Command is responsible for providing a firearms-response capability, assisting the rest of the service, which is normally unarmed...

. Whereas, all other siege situations involving an armed, barricaded criminal were dealt with by borough
London borough
The administrative area of Greater London contains thirty-two London boroughs. Inner London comprises twelve of these boroughs plus the City of London. Outer London comprises the twenty remaining boroughs of Greater London.-Functions:...

 "divisional riflemen", supervised by a senior officer doubling as instructor from D11.

The Metropolitan Police firearms unit has had a series of name changes, due to continuous changes in departmental units. When first formed in 1966, it was named D6, before being changed to D11. After than it was changed to PT17 under Personnel and Training, when the Specialist Operations
Specialist Operations
Specialist Operations is a directorate of the Metropolitan Police. At its peak, SO was a group of twenty specialist units, which were formed to give the Metropolitan Police a specialist policing capability. The SO designation was implemented in 1986 as part of Sir Kenneth Newman's restructuring of...

 designation was introduced it was changed to SO19. Upon "SO" being phased out in 2005, its designation was replaced by Central Operations
Central Operations
Central Operations is a major directorate of the London Metropolitan Police Service that provides operational support to the rest of the service...

. The firearms units present name is Specialist Firearms Command
Specialist Firearms Command
Central Operations Specialist Firearms Command is a Central Operations branch within Greater London's Metropolitan Police Service. The Command is responsible for providing a firearms-response capability, assisting the rest of the service, which is normally unarmed...

, with its designation being CO19.

Since 2005, the police have been equipped and authorised to employ the use of the Heckler & Koch L104A1
Heckler & Koch HK69A1
The HK69A1 is a 40 mm grenade launcher developed and produced by the German arms manufacturer Heckler & Koch . The weapon was designed to engage enemy troops and strongpoints out to a distance of 350 m; it can also be used to deploy smoke grenades and illumination flares.-Development:The launcher’s...

 "baton gun"
Riot gun
A riot gun or less-lethal launcher is a type of firearm that is used to fire "non-lethal" ammunition for the purpose of suppressing riots. Less-lethal launchers may be special purpose firearms designed for riot control use, or standard firearms, usually shotguns and grenade launchers, adapted to...

, which fires an attenuating energy projectile
Rubber bullet
Rubber bullets are rubber or rubber-coated projectiles that can be fired from either standard firearms or dedicated riot guns. They are intended to be a non-lethal alternative to metal projectiles...

. The "baton gun" is authorised for use in situations where an offender needs to be incapacitated, without resorting to the use of conventional firearms. Armed officers also have access to the discriminating irritant
Irritation
Irritation or exacerbation, in biology and physiology, is a state of inflammation or painful reaction to allergy or cell-lining damage. A stimulus or agent which induces the state of irritation is an irritant...

 projectile, which is designed to deliver a cloud of irritant in the direction of an aggressive offender.

During July 2007, the Home Office
Home Office
The Home Office is the United Kingdom government department responsible for immigration control, security, and order. As such it is responsible for the police, UK Border Agency, and the Security Service . It is also in charge of government policy on security-related issues such as drugs,...

 announced plans to supply police forces in England & Wales with taser
Taser
A Taser is an electroshock weapon that uses electrical current to disrupt voluntary control of muscles. Its manufacturer, Taser International, calls the effects "neuromuscular incapacitation" and the devices' mechanism "Electro-Muscular Disruption technology"...

s as a Less-lethal
Less-lethal weapon
Non-lethal weapons, also called less-lethal weapons, less-than-lethal weapons, non-deadly weapons, compliance weapons, or pain-inducing weapons are weapons intended to be less likely to kill a living target than are conventional weapons...

 option. Tasers are authorised for use in situations where an offender needs to be incapacitated, but without resorting to the use of conventional firearms. Tasers are authorised for use by Authorised
Authorised Firearms Officer
An Authorised Firearms Officer is a British police officer who has received training and authorisation to carry and use firearms. The designation is significant because within the United Kingdom, police officers do not routinely carry firearms...

 and Specialist Firearms Officer
Specialist Firearms Officer
A Specialist Firearms Officer is a British Police officer who has undergone training in the use of police firearms, and therefore is authorised to carry and when necessary use a firearm to prevent an immediate threat to life. All SFOs first train as Authorised Firearms Officers which crew armed...

s, along with other units who are not routinely armed such as public order Police Support Units
Police Support Unit (UK)
A Police Support Unit or PSU is a unit of police officers who have undergone specialist training in public order policing.Police Support Unit training in the United Kingdom is voluntary tactical training undertaken by selected candidates that provides students with the skills required to safely and...

. Following a 12-month trial period in 2004, tasers became authorised on a full time basis.

Organisation

Firearms units in large forces, are headed by a Chief Superintendent, Superintendent, four Chief Inspectors, three Inspectors and six Sergeants, with up to fifty to sixty Constables. In certain smaller forces, the firearms unit is headed by a Superintendent, four Chief Inspectors, two Inspectors, four Sergeants, with forty to fifty Constables.

Firearms units maintain a number of tactical advisors to aid senior officers in decision making during major incidents, and to provide a planning capability for pre-planned firearms operations and VIP
Very Important Person
A Very Important Person, or VIP is a person who is accorded special privileges due to his or her status or importance.Examples include celebrities, heads of state/heads of government, major employers, high rollers, politicians, high-level corporate officers, wealthy individuals, or any other...

 protection. The main responsibilities of firearms units in the UK are the response to emergency calls
999 (emergency telephone number)
999 is an official emergency telephone number in a number of countries which allows the caller to contact emergency services for urgent assistance....

 believed to involve firearms, and the arrest of armed, dangerous or barricaded criminals in official raids and operations. Specialist Firearms Officer
Specialist Firearms Officer
A Specialist Firearms Officer is a British Police officer who has undergone training in the use of police firearms, and therefore is authorised to carry and when necessary use a firearm to prevent an immediate threat to life. All SFOs first train as Authorised Firearms Officers which crew armed...

s receive enhanced training in dynamic entry tactics, for hostage rescue
Hostage crisis
A hostage crisis develops when one or more terrorists or criminals hold people against their will and try to hold off the authorities by force, threatening to kill the hostages if provoked or attacked....

.

Each police force operates an Armed Response Vehicle
Armed Response Vehicle
An armed response vehicle is a type of police car operated by the British police. ARVs are crewed by Authorised Firearms Officers to respond to emergency telephone calls believed to involve firearms or other high-risk situations...

 system, crewed by Authorised Firearms Officer
Authorised Firearms Officer
An Authorised Firearms Officer is a British police officer who has received training and authorisation to carry and use firearms. The designation is significant because within the United Kingdom, police officers do not routinely carry firearms...

s. ARVs were introduced into the British police in the early 1990s, to provide them with the capability to respond to firearms incidents. ARVs constantly patrol a geographical area, reducing deployment time. Most forces have purchased Volvo V70
Volvo V70
The Volvo V70 is a mid-size five-door estate car / station wagon manufactured by Volvo Cars since 2000. It is closely related to the S70, S60 and S80 saloons, as well as the four-wheel drive Cross Country and XC70....

s for ARV duties, although the Metropolitan Police Service
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

 employs standard BMW area cars, adapted for specialist duty usage.

Many forces operate Road Policing Unit
Road Policing Unit
The Road Policing Unit is the term for the Highway patrol within the majority of British police forces.-Responsibilities:RPUs work with the National Roads Policing Strategy, which has five strands:* Casualty reduction.* Counter-terrorism....

s, solely responsible for maintaining the traffic flow
Traffic flow
Traffic flow, in mathematics and civil engineering, is the study of interactions between vehicles, drivers, and infrastructure , with the aim of understanding and developing an optimal road network with efficient movement of traffic and minimal traffic congestion problems.-History:Attempts to...

 on UK motorways and A roads
Great Britain road numbering scheme
The Great Britain road numbering scheme is a numbering scheme used to classify and identify all roads in Great Britain. Each road is given a single letter, which represents the road's category, and a subsequent number, with a length of between 1 and 4 digits. Originally introduced to arrange...

. Instead of creating both an ARV and an RPU, certain forces have merged then together creating "Traffic ARVs" which carry out normal road policing duties, until required for firearms incidents.

Within London's Metropolitan Police
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

, Armed Response Vehicle
Armed Response Vehicle
An armed response vehicle is a type of police car operated by the British police. ARVs are crewed by Authorised Firearms Officers to respond to emergency telephone calls believed to involve firearms or other high-risk situations...

s are crewed by three Authorised Firearms Officer
Authorised Firearms Officer
An Authorised Firearms Officer is a British police officer who has received training and authorisation to carry and use firearms. The designation is significant because within the United Kingdom, police officers do not routinely carry firearms...

s. Each AFO has a specified task - an advanced driver
Advanced Driving Test
The advanced driving test is a special exam for motorists who can drive to a skill level substantially above average, and candidates who passed are called advanced drivers...

, a navigator
Navigation
Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another. It is also the term of art used for the specialized knowledge used by navigators to perform navigation tasks...

 and an observer who is responsible for scene assessment and liaison with other services. ARVs outside of the capital are crewed by two officers, with the observer assuming the role of navigator. Some forces have reserved a radio call sign
Call sign
In broadcasting and radio communications, a call sign is a unique designation for a transmitting station. In North America they are used as names for broadcasting stations...

 for ARVs, such as "trojan" to make them easier to identify when using radios
Police radio
Police radio is a communications radio system used by law enforcement agencies all over the world.Many such systems are encrypted to prevent eavesdroppers from listening in.-Portable radios:...

. ARVs in most forces are identified by a circular yellow sticker on the body of the vehicle, and some have "ARV" printed on the vehicle.

Metropolitan Police firearms officers usually patrol on-foot more often than those outside of London, due to the large geographic area the Metropolitan Police are responsible for and the number of sensitive government buildings in need of armed security. They can also be found at major demonstrations, and large social events such as the Chinese New Year
Chinese New Year
Chinese New Year – often called Chinese Lunar New Year although it actually is lunisolar – is the most important of the traditional Chinese holidays. It is an all East and South-East-Asia celebration...

. Diplomatic Protection Group
Diplomatic Protection Group
The Diplomatic Protection Group is a Specialist Operations branch of London's Metropolitan Police Service. The unit's main purpose is to provide specialist protection for diplomatic residencies in London, such as embassies, high commissions and consular sections...

 officers are routinely armed as they are responsible for guarding government buildings classed as "high risk", such as foreign embassies, Downing Street
10 Downing Street
10 Downing Street, colloquially known in the United Kingdom as "Number 10", is the headquarters of Her Majesty's Government and the official residence and office of the First Lord of the Treasury, who is now always the Prime Minister....

, along with Westminster
Palace of Westminster
The Palace of Westminster, also known as the Houses of Parliament or Westminster Palace, is the meeting place of the two houses of the Parliament of the United Kingdom—the House of Lords and the House of Commons...

 and Buckingham Palace
Buckingham Palace
Buckingham Palace, in London, is the principal residence and office of the British monarch. Located in the City of Westminster, the palace is a setting for state occasions and royal hospitality...

.

If a police forces
Territorial police force
The phrase Territorial Police Force varies in precise meaning according to the country to which it is related, generally distinguishing a force whose area of responsibility is defined by sub-national boundaries from others which deal with the entire country or a restricted range of...

 geographical area includes an airport
Airport
An airport is a location where aircraft such as fixed-wing aircraft, helicopters, and blimps take off and land. Aircraft may be stored or maintained at an airport...

, armed officers would be assigned to the airport to assist in security. The Metropolitan Police's Aviation Security Operational Command Unit
Aviation Security Operational Command Unit
The Aviation Security Operational Command Unit is a Specialist Operations unit of London's Metropolitan Police Service. The unit is responsible for providing law enforcement and security for both Heathrow and London City airports...

 polices London Heathrow Airport
London Heathrow Airport
London Heathrow Airport or Heathrow , in the London Borough of Hillingdon, is the busiest airport in the United Kingdom and the third busiest airport in the world in terms of total passenger traffic, handling more international passengers than any other airport around the globe...

, Sussex Police
Sussex Police
Sussex Police is the territorial police force responsible for policing East Sussex, West Sussex and City of Brighton and Hove in southern England. Its head office is in Lewes, Lewes District, East Sussex.-History:...

 are responsible for Gatwick Airport
London Gatwick Airport
Gatwick Airport is located 3.1 miles north of the centre of Crawley, West Sussex, and south of Central London. Previously known as London Gatwick,In 2010, the name changed from London Gatwick Airport to Gatwick Airport...

, and Essex Constabulary are responsible for Stansted
London Stansted Airport
-Cargo:-Statistics:-Infrastructure:-Terminal and satellite buildings:Stansted is the newest passenger airport of all the main London airports. The terminal is an oblong glass building, and is separated in to three areas: Check-in concourse, arrivals and departures...

.

Training

Out of the total 150,000 officers
Police officer
A police officer is a warranted employee of a police force...

 in the 39 territorial police force
Territorial police force
The phrase Territorial Police Force varies in precise meaning according to the country to which it is related, generally distinguishing a force whose area of responsibility is defined by sub-national boundaries from others which deal with the entire country or a restricted range of...

s in England, 6,500 are trained in the use of firearms. 2,500 of them are in service with the Metropolitan Police
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

.

Before a police officer
Police officer
A police officer is a warranted employee of a police force...

 can apply to join the firearms unit, they are required to have completed their two year probationary period
Probation (workplace)
In a workplace setting, probation is a status given to new employees of a company or business.It is widely termed as Probation Period of an employee...

. After being screened for security clearance
Security clearance
A security clearance is a status granted to individuals allowing them access to classified information, i.e., state secrets, or to restricted areas after completion of a thorough background check. The term "security clearance" is also sometimes used in private organizations that have a formal...

 and undergoing various interviews, they are invited to attend the National Police Firearms Training Centre at Gravesend, Kent
Gravesend, Kent
Gravesend is a town in northwest Kent, England, on the south bank of the Thames, opposite Tilbury in Essex. It is the administrative town of the Borough of Gravesham and, because of its geographical position, has always had an important role to play in the history and communications of this part of...

. At the centre, the potential AFOs undergo one week of intensive training on the Glock 17 pistol
Pistol
When distinguished as a subset of handguns, a pistol is a handgun with a chamber that is integral with the barrel, as opposed to a revolver, wherein the chamber is separate from the barrel as a revolving cylinder. Typically, pistols have an effective range of about 100 feet.-History:The pistol...

, Heckler & Koch MP5
Heckler & Koch MP5
The Heckler & Koch MP5 is a 9mm submachine gun of German design, developed in the 1960s by a team of engineers from the German small arms manufacturer Heckler & Koch GmbH of Oberndorf am Neckar....

 semi automatic carbine
Semi-automatic firearm
A semi-automatic, or self-loading firearm is a weapon which performs all steps necessary to prepare the weapon to fire again after firing—assuming cartridges remain in the weapon's feed device or magazine...

, Heckler & Koch L104A1
Heckler & Koch HK69A1
The HK69A1 is a 40 mm grenade launcher developed and produced by the German arms manufacturer Heckler & Koch . The weapon was designed to engage enemy troops and strongpoints out to a distance of 350 m; it can also be used to deploy smoke grenades and illumination flares.-Development:The launcher’s...

 baton gun
Riot gun
A riot gun or less-lethal launcher is a type of firearm that is used to fire "non-lethal" ammunition for the purpose of suppressing riots. Less-lethal launchers may be special purpose firearms designed for riot control use, or standard firearms, usually shotguns and grenade launchers, adapted to...

 and the X26 Taser
Taser
A Taser is an electroshock weapon that uses electrical current to disrupt voluntary control of muscles. Its manufacturer, Taser International, calls the effects "neuromuscular incapacitation" and the devices' mechanism "Electro-Muscular Disruption technology"...

. This is followed by training on the legal regulations regarding the police use of firearms and rules of engagement
Rules of engagement
Rules of Engagement refers to those responses that are permitted in the employment of military personnel during operations or in the course of their duties. These rules of engagement are determined by the legal framework within which these duties are being carried out...

, a further six weeks of training is focused solely on ARVs
Armed Response Vehicle
An armed response vehicle is a type of police car operated by the British police. ARVs are crewed by Authorised Firearms Officers to respond to emergency telephone calls believed to involve firearms or other high-risk situations...

, with an emphasis on driving techniques, high speed pursuit
Car chase
A car chase is the vehicular pursuit of a suspect by law enforcement officers. Car chases are often captured on film and broadcast due to the availability of video footage recorded by police cars and police and media helicopters participating in the chase...

 methods and safely executing controlled crashes.

Authorised Firearms Officers applying to become Specialist Firearms Officer
Specialist Firearms Officer
A Specialist Firearms Officer is a British Police officer who has undergone training in the use of police firearms, and therefore is authorised to carry and when necessary use a firearm to prevent an immediate threat to life. All SFOs first train as Authorised Firearms Officers which crew armed...

s, are required to attend an eight week training course at the National Police Firearms Training Centre. The main role of an SFO is to intervene in situations that are beyond the control of AFOs, such as building sieges involving a hostage situation. Potential SFOs are extensively trained in the use of specialist firearms, method of entry
Door breaching
Door breaching is a process used by military, police, or emergency services to force open closed and/or locked doors. A wide range of methods are available, one or more of which may be used in any given situation...

 techniques and abseiling
Abseiling
Abseiling , rappelling in American English, is the controlled descent down a rock face using a rope; climbers use this technique when a cliff or slope is too steep and/or dangerous to descend without protection.- Slang terms :...

 'fast rope'
Fast-roping
Fast-roping, sometimes known as Fast Rope Insertion Extraction System , is a technique for descending a thick rope. It is useful for deploying troops from a helicopter in places where the helicopter itself cannot touch down. First developed by the British with UK rope manufacturer Marlow Ropes,...

 skills. Potential SFOs are also trained in safe entry into air
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

 and watercraft
Watercraft
A watercraft is a vessel or craft designed to move across or through water. The name is derived from the term "craft" which was used to describe all types of water going vessels...

. Training also includes the use of tear gas
Lachrymatory agent
Tear gas, formally known as a lachrymatory agent or lachrymator , is a non-lethal chemical weapon that stimulates the corneal nerves in the eyes to cause tears, pain, and even blindness...

 and stun grenades, safe handling of hostages and rescue techniques, computer simulated 'war games'
Military simulation
Military simulations, also known informally as war games, are simulations in which theories of warfare can be tested and refined without the need for actual hostilities. Many professional contemporary analysts object to the term wargames as this is generally taken to be referring to the civilian...

 of potential threats such as a major evacuation or terrorist attack, and training in the use of protective clothing
NBC suit
An NBC suit is a type of military personal protective equipment designed to provide protection against direct contact with and contamination by radioactive, biological or chemical substances, and provides protection from contamination with radioactive materials and some types of radiation,...

 against CBRN
CBRN
CBRN is an initialism for chemical, biological, radiological, and nuclear. It is used to refer to situations in which any of these four hazards have presented themselves. The term CBRN is a replacement for the cold war term NBC , which had replaced the term ABC that was used in the fifties...

 attack.

The guidelines regarding operational use of firearms and rules of engagement
Rules of engagement
Rules of Engagement refers to those responses that are permitted in the employment of military personnel during operations or in the course of their duties. These rules of engagement are determined by the legal framework within which these duties are being carried out...

 are dictated by the Association of Chief Police Officers
Association of Chief Police Officers
The Association of Chief Police Officers , established in 1948, is a private limited company that leads the development of policing practice in England, Wales and Northern Ireland.ACPO provides a forum for chief police officers to share ideas and coordinates the strategic...

, making sure that the rules outlined are compliant with the European Convention of Human Rights and the Police and Criminal Evidence Act 1984
Police and Criminal Evidence Act 1984
The Police and Criminal Evidence Act 1984 is an Act of Parliament which instituted a legislative framework for the powers of police officers in England and Wales to combat crime, as well as providing codes of practice for the exercise of those powers. Part VI of PACE required the Home Secretary...

. Firearms officers are authorised to fire upon a suspect if they pose an "immediate threat to life", such as if an armed offender brandished a firearm at a member of the public or police officer. They may also fire if an offender is clearly in possession of a firearm, or is suspected to be carrying one. In all situations, a clear oral warning must be given of the officers intention to use firearms, unless in a particular situation it would be pointless of place life at risk. Firearms officers are also authorised to use their firearms for the humane destruction of animals, or if those poses a significant threat. Firearms officer are not required to give an oral warning if they are approaching someone who is believed to be intent on committing a suicide bombing. All officers are trained to fire once at the central mass
Torso
Trunk or torso is an anatomical term for the central part of the many animal bodies from which extend the neck and limbs. The trunk includes the thorax and abdomen.-Major organs:...

 in order to incapacitate a threat, then to re-assess the situation and the threat posed to justify any further shots. However, if Operation Kratos
Operation Kratos
Operation Kratos referred to tactics developed by London's Metropolitan Police Service for dealing with suspected suicide bombers, most notably firing shots to the head without warning....

 contingency plans are activated, an armed officer may shoot at the target's head, to kill, as a standard incapacitating shot risks detonating a bomb attached to the person. In all situations, the officer is to make the decision when to shoot. However, they are accountable in court and are asked to justify their actions in a court of law
Court
A court is a form of tribunal, often a governmental institution, with the authority to adjudicate legal disputes between parties and carry out the administration of justice in civil, criminal, and administrative matters in accordance with the rule of law...

.

Tactics

Upon an emergency call
999 (emergency telephone number)
999 is an official emergency telephone number in a number of countries which allows the caller to contact emergency services for urgent assistance....

 being received about an incident involving firearms, an Armed Response Vehicle
Armed Response Vehicle
An armed response vehicle is a type of police car operated by the British police. ARVs are crewed by Authorised Firearms Officers to respond to emergency telephone calls believed to involve firearms or other high-risk situations...

 crewed by AFOs
Authorised Firearms Officer
An Authorised Firearms Officer is a British police officer who has received training and authorisation to carry and use firearms. The designation is significant because within the United Kingdom, police officers do not routinely carry firearms...

 would be dispatched. The AFOs first on scene would attempt to contain an armed subject if they are inside a building, whereas if they were in the open were an immediate threat is posed a quicker solution would be sought. If a subject is inside a building which is barricaded, AFOs would most likely assault the building as long as it does not require specialist entry or the motive of the subject is terrorist affiliated. If the building required specialist entry or a terrorist gain, Specialist Firearms Officer
Specialist Firearms Officer
A Specialist Firearms Officer is a British Police officer who has undergone training in the use of police firearms, and therefore is authorised to carry and when necessary use a firearm to prevent an immediate threat to life. All SFOs first train as Authorised Firearms Officers which crew armed...

s would attempt to assault the building. Pending authorisation from the Home Office
Home Office
The Home Office is the United Kingdom government department responsible for immigration control, security, and order. As such it is responsible for the police, UK Border Agency, and the Security Service . It is also in charge of government policy on security-related issues such as drugs,...

 to deploy SFOs, ARV officers would organise an inner and outer cordon. The inner being made up of armed officers, and the outer of unarmed to prevent members of the public gaining entry and prevent traffic entering the affected area. Efforts would be made to evacuate people in the immediate vicinity so that they are not at risk of stray gunfire, or confine them to their homes for their own safety. A control room would be established where emergency services can liase and plan the operation, along with a mobile canteen
Food truck
A food truck, mobile kitchen, mobile canteen, or catering truck is a mobile venue that sells food. Some, including ice cream trucks, sell mostly frozen or prepackaged food; others are more like restaurants-on-wheels...

 nearby. The police would employ the Gold Silver Bronze command structure
Gold Silver Bronze command structure
A gold–silver–bronze command structure is used by emergency services of the United Kingdom to establish a hierarchical framework for the command and control of major incidents and disasters...

, with a Gold Commander being a senior officer overseeing events from a nearby police station
Police station
A police station or station house is a building which serves to accommodate police officers and other members of staff. These buildings often contain offices and accommodation for personnel and vehicles, along with locker rooms, temporary holding cells and interview/interrogation rooms.- Facilities...

, the Silver Commander who would oversee events from the on-scene control room, and the Bronze Commander who would be as close to the incident as possible.

In the preliminary stages of a siege or hostage situation, an observation point is allocated and assigned a marksman
Marksman
A marksman is a person who is skilled in precision, or a sharpshooter shooting, using projectile weapons, such as with a rifle but most commonly with a sniper rifle, to shoot at long range targets...

. A deliberate action plan plan would be devised, briefing each member of the assault team on the entry points, and details of the assault. Negotiations
Hostage negotiator
Crisis negotiation is a technique for law enforcement to communicate with people who are threatening violence, including barricaded subjects, hostage takers, stalkers, threats, workplace violence, or persons threatening suicide....

 are made allowing the hostage takers to issue demands, which are usually done to acquire time and avoid harm to the hostages. The negotiations would be attended by a psychological profiler
Offender profiling
Offender profiling, also known as criminal profiling, is a behavioral and investigative tool that is intended to help investigators to profile unknown criminal subjects or offenders. Offender profiling is also known as criminal profiling, criminal personality profiling, criminological profiling,...

 to assess the hostage takers state of mind, such as whether they have been forced into the situation through avoiding arrest or have a wider objective.

If negotiations deteriorate to a point where hostages are placed at risk of immediate death or injury, an assault by SFOs may be authorised. In a minority of cases, the police may hand over responsibility to the British Army
British Army
The British Army is the land warfare branch of Her Majesty's Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England...

 Special Forces
United Kingdom Special Forces
The United Kingdom Special Forces is a UK Ministry of Defence Directorate which also has the capability to provide a Joint Special Operations Task Force Headquarters...

.

The structure of police assault teams vary, but the most commonly deployed are:
  • "Shield officer" - carrying a ballistic shield
    Ballistic shield
    A ballistic shield or tactical shield is a hand-held shield that is capable of defending the user from handguns, shotguns and submachine guns. Less common are heavier and thicker rifle-protection shields that are mounted on wheels for ease of mobility...

     to cover the team from being fired upon.
  • "Baton officer" - carrying a baton
    Baton (law enforcement)
    A truncheon or baton is essentially a club of less than arm's length made of wood, plastic, or metal...

     (as well as a firearm) to engage any unarmed offenders.
  • Method of entry
    Door breaching
    Door breaching is a process used by military, police, or emergency services to force open closed and/or locked doors. A wide range of methods are available, one or more of which may be used in any given situation...

     Specialist - responsible for opening barricaded doors, usually armed with a Remington
    Remington 870
    The Remington Model 870 is a U.S.-made pump-action shotgun manufactured by Remington Arms Company, Inc. It is widely used by the public for sport shooting, hunting, and self-defense. It is also commonly used by law enforcement and military organizations worldwide.-Development:The Remington 870 was...

     shotgun
    Shotgun
    A shotgun is a firearm that is usually designed to be fired from the shoulder, which uses the energy of a fixed shell to fire a number of small spherical pellets called shot, or a solid projectile called a slug...

    .
  • "Cover officer" - responsible for protecting the other members of the team as they carry out their functions.
  • "Prisoner reception officer" - responsible for handling prisoners.
  • A team leader and a police dog may enter.


Such an assault may be preceded by "ferret" CS gas canisters fired into the property, to concuss and soften resistance.

Following an assault firearms officers have made the premises safe, by clearing it out of offenders and making both police and offenders weapons safe. Scenes of Crime Officer
Scenes of Crime Officer
A Scenes of Crime Officer is an officer who gathers forensic evidence for the British police. They are also referred to by some forces as Forensic Scene Investigators , Crime Scene Investigators , or Crime Scene Examiners...

s will forensically seal both police and other weapons for examination to discover if either have been discharged, and to be used as evidence in court.

Legal status of the use of firearms

The usage of firearms by the police is covered by statute (such as the Police and Criminal Evidence Act 1984
Police and Criminal Evidence Act 1984
The Police and Criminal Evidence Act 1984 is an Act of Parliament which instituted a legislative framework for the powers of police officers in England and Wales to combat crime, as well as providing codes of practice for the exercise of those powers. Part VI of PACE required the Home Secretary...

 and Human Rights Act 1998
Human Rights Act 1998
The Human Rights Act 1998 is an Act of Parliament of the United Kingdom which received Royal Assent on 9 November 1998, and mostly came into force on 2 October 2000. Its aim is to "give further effect" in UK law to the rights contained in the European Convention on Human Rights...

), policy (such as the Home Office
Home Office
The Home Office is the United Kingdom government department responsible for immigration control, security, and order. As such it is responsible for the police, UK Border Agency, and the Security Service . It is also in charge of government policy on security-related issues such as drugs,...

 Code of Practice on Police use of Firearms and Less Lethal Weapons and the ACPO
Association of Chief Police Officers
The Association of Chief Police Officers , established in 1948, is a private limited company that leads the development of policing practice in England, Wales and Northern Ireland.ACPO provides a forum for chief police officers to share ideas and coordinates the strategic...

 Manual of Guidance on Police Use of Firearms) and common law
Common law
Common law is law developed by judges through decisions of courts and similar tribunals rather than through legislative statutes or executive branch action...

.

AFOs may only carry firearms when authorised by an "appropriate authorising officer". The appropriate authorising officer must be of the rank of Inspector
Inspector
Inspector is both a police rank and an administrative position, both used in a number of contexts. However, it is not an equivalent rank in each police force.- Australia :...

 or higher. When working at airport
Airport
An airport is a location where aircraft such as fixed-wing aircraft, helicopters, and blimps take off and land. Aircraft may be stored or maintained at an airport...

s, nuclear sites, on Protection Duties and deployed in Armed Response Vehicle
Armed Response Vehicle
An armed response vehicle is a type of police car operated by the British police. ARVs are crewed by Authorised Firearms Officers to respond to emergency telephone calls believed to involve firearms or other high-risk situations...

s in certain areas, 'Standing Authority' is granted to carry personal sidearms. All members of the Police Service of Northern Ireland
Police Service of Northern Ireland
The Police Service of Northern Ireland is the police force that serves Northern Ireland. It is the successor to the Royal Ulster Constabulary which, in turn, was the successor to the Royal Irish Constabulary in Northern Ireland....

 have authority to carry a personal issue handgun as a matter of routine. In all forces, usage of other weapons such as semi-automatic carbine
Semi-automatic firearm
A semi-automatic, or self-loading firearm is a weapon which performs all steps necessary to prepare the weapon to fire again after firing—assuming cartridges remain in the weapon's feed device or magazine...

s requires further training and authorisation. Semi-automatic carbines are stored in a locked armoury which is situated in the boot of an Armed Response Vehicle. Equipping of semi-automatic carbines rests on a judgment of the AFO.

United Kingdom law allows the use of "reasonable force" in order to make an arrest or prevent a crime or to defend one's self. However, if the force used is fatal, then the European Convention of Human Rights only allows "the use of force which is no more than absolutely necessary". Firearms officers may therefore only discharge their weapons "to stop an imminent threat to life".

ACPO policy states that "use" of a firearm includes both pointing it at a person and discharging it (whether accidentally
Accidental discharge
Accidental discharge is the event of a firearm discharging at a time not intended by the user. Perhaps most commonly, accidental discharges occur when the trigger of the firearm is deliberately pulled for a purpose other than shooting—dry-fire practice, demonstration,...

, negligently
Negligent discharge
A negligent discharge is a discharge of a firearm involving culpable carelessness. In judicial and military technical terms, a negligent discharge is a chargeable offence. A number of armed forces automatically consider any accidental discharge to be negligent discharge, under the assumption that...

 or on purpose).
As with all use of force in England and Wales, the onus is on the individual officer to justify their actions in court.

Firearms Intelligence Unit

Certain police forces that have high gun crime
Gun violence
Gun violence defined literally means the use of a firearm to threaten or inflict violence or harm. Gun violence may be broadly defined as a category of violence and crime committed with the use of a firearm; it may or may not include actions ruled as self-defense, actions for law enforcement, or...

 rates have set up an FIU to gather intelligence
Intelligence (information gathering)
Intelligence assessment is the development of forecasts of behaviour or recommended courses of action to the leadership of an organization, based on a wide range of available information sources both overt and covert. Assessments are developed in response to requirements declared by the leadership...

 on gun crime, or certain parts of the community it may affect. Possibly one of the most notable FIUs is the Metropolitan Police
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

's Operation Trident & Trafalgar, which initially only investigated gun crime involving the black
Black people
The term black people is used in systems of racial classification for humans of a dark skinned phenotype, relative to other racial groups.Different societies apply different criteria regarding who is classified as "black", and often social variables such as class, socio-economic status also plays a...

 community but has since expanded to investigate all shootings. FIU also works to identify criminals who are known to have access to firearms.

Types of firearms officer

  • Authorised Firearms Officer
    Authorised Firearms Officer
    An Authorised Firearms Officer is a British police officer who has received training and authorisation to carry and use firearms. The designation is significant because within the United Kingdom, police officers do not routinely carry firearms...

     are trained in all weapons issued to his or her police force as well as battlefield medicine
    Battlefield medicine
    Battlefield medicine, also called field surgery and later combat casualty care, is the treatment of wounded soldiers in or near an area of combat. Civilian medicine has been greatly advanced by procedures that were first developed to treat the wounds inflicted during combat...

    , which includes the treatment of gunshot wounds. They also crew Armed Response Vehicle
    Armed Response Vehicle
    An armed response vehicle is a type of police car operated by the British police. ARVs are crewed by Authorised Firearms Officers to respond to emergency telephone calls believed to involve firearms or other high-risk situations...

    s.

  • Specialist Firearms Officer
    Specialist Firearms Officer
    A Specialist Firearms Officer is a British Police officer who has undergone training in the use of police firearms, and therefore is authorised to carry and when necessary use a firearm to prevent an immediate threat to life. All SFOs first train as Authorised Firearms Officers which crew armed...

     are qualified as an AFO, with extra training within a specific area, such as specialist weapons, Close Protection, Tactical Medicine, Tactics Advice, Advanced Police Driving or Police Firearms Instruction, and are commonly the firearms officers to assault a building in a hostage situation.

Firearms and equipment

Firearms and equipment
Uniforms and equipment of the British police
Police uniforms and equipment in the United Kingdom have varied considerably from the inception of what was to become the earliest recognisable mainstream police force in the country with the Metropolitan Police Act of 1829...

 in service vary between forces, due to individual police authorities
Police authority
A police authority in the United Kingdom, is a body charged with securing efficient and effective policing of a police area served by a territorial police force or the area and/or activity policed by a special police force...

' and chief officers
Chief police officer
Chief police officer is a phrase used in the United Kingdom to describe the position held by the most senior police officer in a police force. It refers to either one of the 53 Chief Constables, the Commissioner of the City of London Police or the Commissioner of the Metropolitan Police. Such...

' independency in deciding equipment for their force.

Despite being armed, AFOs
Authorised Firearms Officer
An Authorised Firearms Officer is a British police officer who has received training and authorisation to carry and use firearms. The designation is significant because within the United Kingdom, police officers do not routinely carry firearms...

 carry the standard issue telescopic or rigid baton
Baton (law enforcement)
A truncheon or baton is essentially a club of less than arm's length made of wood, plastic, or metal...

, CS
CS gas
2-chlorobenzalmalononitrile is the defining component of a "tear gas" commonly referred to as CS gas, which is used as a riot control agent...

/PAVA
Nonivamide
Nonivamide, also called pelargonic acid vanillylamide or PAVA, is an organic compound and a capsaicinoid. It is an amide of pelargonic acid and vanillyl amine. It is present in chili peppers, but is commonly manufactured synthetically...

 incapacitant spray
Lachrymatory agent
Tear gas, formally known as a lachrymatory agent or lachrymator , is a non-lethal chemical weapon that stimulates the corneal nerves in the eyes to cause tears, pain, and even blindness...

, and Speedcuffs
Hiatts Speedcuffs
Speedcuffs are a model of handcuff which were designed and produced by the now defunct UK based Hiatt & Company. They are now produced by Safariland. They are characterised by their rigid grip between the two ratchet cuffs, this replacing the older type which were linked by a chain...

 on the duty belt
Police duty belt
Police duty belt is a belt, typically constructed of nylon or leather used by police and security officers to carry equipment easily, in a readily-accessible manner, while leaving the hands free to interact.- History :Many police forces in the United Kingdom began with a uniform consisting of a...

. Instead of wearing the standard issue stab vest
Stab vest
A stab vest, or stab proof vest is a reinforced piece of body armor, worn under or over other items of clothing, which is designed to resist knife attacks to the chest, back and sides...

, AFOs and SFOs wear a ballistic vest which affords greater protection from gun shots
Ballistic trauma
The term ballistic trauma refers to a form of physical trauma sustained from the discharge of arms or munitions. The most common forms of ballistic trauma stem from firearms used in armed conflicts, civilian sporting and recreational pursuits, and criminal activity.-Destructive effects:The degree...

. Instead of carrying one TETRA
Terrestrial Trunked Radio
Terrestrial Trunked Radio is a professional mobile radio and two-way transceiver specification...

 radio
Police radio
Police radio is a communications radio system used by law enforcement agencies all over the world.Many such systems are encrypted to prevent eavesdroppers from listening in.-Portable radios:...

 like that of an unarmed officer, AFOs carry two, with one being for the force frequency
Radio frequency
Radio frequency is a rate of oscillation in the range of about 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals...

 and the other to communicate solely with other firearms officers on the same duties. The radios are specially adapted so that the officer is not forced to release the grip on the firearm. SFOs
Specialist Firearms Officer
A Specialist Firearms Officer is a British Police officer who has undergone training in the use of police firearms, and therefore is authorised to carry and when necessary use a firearm to prevent an immediate threat to life. All SFOs first train as Authorised Firearms Officers which crew armed...

 would be more likely to wear fire retardant coveralls
Fire Retardant Fabrics
Fire retardant fabrics are textiles that are naturally more resistant to fire than others through chemical treatment or manufactured fireproof fibers.-Terminology and test limitations:...

 with webbing
Webbing
Webbing is a strong fabric woven as a flat strip or tube of varying width and fibres often used in place of rope. The name webbing comes from the meshed material frequently used in its construction, which resembles a web...

 including "belt order" kit.

During the early 1990s, most forces adopted white dress shirt
Dress shirt
A shirt, or dress shirt in American English, is a garment with a collar, a full-length opening at the front from the collar to the hem, and sleeves with cuffs. Shirts are predominantly used by men, since women usually wear blouses...

s for officers, rather than the previous light blue. In most forces, AFOs wear a dark blue dress shirt with standard black trousers. AFOs and SFOs often wear a PASGT
Personnel Armor System for Ground Troops
Personnel Armor System for Ground Troops, sometimes abbreviated to PASGT, was a combat helmet and ballistic vest used by the American military from the mid 1980s until 2005, when the system was succeeded by the Lightweight Helmet, Modular Integrated Communications Helmet, and Interceptor body...

 style ballistic helmet
Combat helmet
A combat helmet or battle helmet is a type of personal armor designed specifically to protect the head during combat. Helmets are among the oldest forms of personal protective equipment and are known to have been worn by the Akkadians/Sumerians in the 23rd century BC, Mycenaean Greeks since 17th...

, rather than the peaked cap
Peaked cap
A peaked cap, forage cap, barracks cover, or combination cap is a form of headgear worn by the armed forces of many nations and also by many uniformed civilian organizations such as law enforcement agencies...

 or custodian helmet
Custodian helmet
Custodian helmet or centurion helmet, technically known as a 'Home Office pattern helmet', is a helmet worn by many policemen in England and Wales.-History:...

.

Firearms issued to the police are adapted so that they can only fire semi-automatic
Semi-automatic firearm
A semi-automatic, or self-loading firearm is a weapon which performs all steps necessary to prepare the weapon to fire again after firing—assuming cartridges remain in the weapon's feed device or magazine...

, meaning that they can only discharge one round
Cartridge (firearms)
A cartridge, also called a round, packages the bullet, gunpowder and primer into a single metallic case precisely made to fit the firing chamber of a firearm. The primer is a small charge of impact-sensitive chemical that may be located at the center of the case head or at its rim . Electrically...

 with each pull of the trigger, opposed to fully automatics
Automatic firearm
An automatic firearm is a firearm that loads another round mechanically after the first round has been fired.The term can be used to refer to semi-automatic firearms, which fire one shot per single pull of the trigger , or fully automatic firearms, which will continue to load and fire ammunition...

 as used by the armed forces.

Alternative names for firearms units

  • Devon and Cornwall Constabulary
    Devon and Cornwall Constabulary
    Devon and Cornwall Police, formerly Devon and Cornwall Constabulary, is the territorial police force responsible for policing the counties of Devon and Cornwall in England and the unitary authorities of Plymouth, Torbay and the Isles of Scilly....

    : Tactical Aid Group
  • Metropolitan Police Service
    Metropolitan Police Service
    The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

    : Specialist Firearms Command (known as CO19, after the CO designation
    Central Operations
    Central Operations is a major directorate of the London Metropolitan Police Service that provides operational support to the rest of the service...

    , previously within SO
    Specialist Operations
    Specialist Operations is a directorate of the Metropolitan Police. At its peak, SO was a group of twenty specialist units, which were formed to give the Metropolitan Police a specialist policing capability. The SO designation was implemented in 1986 as part of Sir Kenneth Newman's restructuring of...

  • Kent Police
    Kent Police
    Kent Police is the territorial police force for Kent in England, including the unitary authority of Medway.-Area and organisation:The force covers an area of with an approximate population of 1,660,588 . The Chief Constable is currently Ian Learmonth, who was appointed in 2010 and is the former...

    : Training and Tactical Firearms Unit
  • City of London Police
    City of London Police
    The City of London Police is the territorial police force responsible for law enforcement within the City of London, England, including the Middle and Inner Temple. The service responsible for law enforcement within the rest of Greater London is the Metropolitan Police Service, a separate...

    : Tactical Firearms Group
  • Wiltshire Police: Armed Response Group

Firearms units outside the UK

Specialised armed police units are present in foreign Law enforcement agencies
Law enforcement agency
In North American English, a law enforcement agency is a government agency responsible for the enforcement of the laws.Outside North America, such organizations are called police services. In North America, some of these services are called police while others have other names In North American...

 where officers are routinely armed. Foreign firearms units are not intended to deal with routine firearms incidents, as they are attended to by divisional officers due to them routinely carrying firearms. Such units are normally only called upon when firearms incidents are of such a nature, that they require specialist intervention. Whereas the firearms units within the United Kingdom respond to all firearms related incidents, as UK police (with the exception of Northern Ireland) are not routinely armed. Possibly some of the known foreign units are the Special Weapons and Tactics (SWAT)
SWAT
A SWAT team is an elite tactical unit in various national law enforcement departments. They are trained to perform high-risk operations that fall outside of the abilities of regular officers...

 teams of many American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 police departments. Other examples include Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

's Special Weapons and Operations Squad and the Singapore
Singapore
Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...

an Special Tactics and Rescue
Special Tactics and Rescue (Singapore)
The Special Tactics and Rescue is the elite Special Operations SWAT of the Singapore Police Force. Its official task is to provide the Singapore Police Force with a tactical armed-response capability, and its motto is "Vigilance, Valour, Victory"....

unit.

External links

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