Detective
Encyclopedia
A detective is an investigator, either a member of a police
Police
The police is a personification of the state designated to put in practice the enforced law, protect property and reduce civil disorder in civilian matters. Their powers include the legitimized use of force...

 agency or a private person. The latter may be known as private investigator
Private investigator
A private investigator , private detective or inquiry agent, is a person who can be hired by individuals or groups to undertake investigatory law services. Private detectives/investigators often work for attorneys in civil cases. Many work for insurance companies to investigate suspicious claims...

s or "private eyes". Informally, and primarily in fiction
Fiction
Fiction is the form of any narrative or informative work that deals, in part or in whole, with information or events that are not factual, but rather, imaginary—that is, invented by the author. Although fiction describes a major branch of literary work, it may also refer to theatrical,...

, a detective is any licensed or unlicensed person who solves crime
Crime
Crime is the breach of rules or laws for which some governing authority can ultimately prescribe a conviction...

s, including historical crimes, or looks into records.

Overview

In some police departments, a detective position is not appointed, it is a position achieved by passing a written test after a person completes the requirements for being a police officer. Prospective British
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...

 police detectives must have completed at least two years as a uniformed officer before applying to join the Criminal Investigation Department
Criminal Investigation Department
The Crime Investigation Department is the branch of all Territorial police forces within the British Police and many other Commonwealth police forces, to which plain clothes detectives belong. It is thus distinct from the Uniformed Branch and the Special Branch.The Metropolitan Police Service CID,...

. UK Police must also pass the National Investigators' Examination in order to progress on to subsequent stages of the Initial Crime Investigators Development Programme in order to qualify as a Detective.

In many other police systems, detectives are college
College
A college is an educational institution or a constituent part of an educational institution. Usage varies in English-speaking nations...

 graduates who join directly from civilian
Civilian
A civilian under international humanitarian law is a person who is not a member of his or her country's armed forces or other militia. Civilians are distinct from combatants. They are afforded a degree of legal protection from the effects of war and military occupation...

 life without first serving as uniformed officers. Some people argue that detectives do a completely different job and therefore require completely different training, qualifications, qualities and abilities than uniformed officers. The opposing argument is that without previous service as a uniformed patrol officer, a detective cannot have a great enough command of standard police procedures and problems and will find it difficult to work with uniformed colleagues.

Detectives obtain their position by competitive examination covering such subjects as principles, practices and procedures of investigation; interviewing and interrogation
Interrogation
Interrogation is interviewing as commonly employed by officers of the police, military, and Intelligence agencies with the goal of extracting a confession or obtaining information. Subjects of interrogation are often the suspects, victims, or witnesses of a crime...

; criminal law
Criminal law
Criminal law, is the body of law that relates to crime. It might be defined as the body of rules that defines conduct that is not allowed because it is held to threaten, harm or endanger the safety and welfare of people, and that sets out the punishment to be imposed on people who do not obey...

 and procedures, applicable law governing arrest
Arrest
An arrest is the act of depriving a person of his or her liberty usually in relation to the purported investigation and prevention of crime and presenting into the criminal justice system or harm to oneself or others...

s, search and seizure
Search and seizure
Search and seizure is a legal procedure used in many civil law and common law legal systems whereby police or other authorities and their agents, who suspect that a crime has been committed, do a search of a person's property and confiscate any relevant evidence to the crime.Some countries have...

s, warrant
Warrant (law)
Most often, the term warrant refers to a specific type of authorization; a writ issued by a competent officer, usually a judge or magistrate, which permits an otherwise illegal act that would violate individual rights and affords the person executing the writ protection from damages if the act is...

s and evidence; police department records and reports; principles, practices and objectives of courtroom testimony
Testimony
In law and in religion, testimony is a solemn attestation as to the truth of a matter. All testimonies should be well thought out and truthful. It was the custom in Ancient Rome for the men to place their right hand on a Bible when taking an oath...

; and police department methods and procedures; typically both officers and detectives do interrogation, but detectives deal with more sensitive situations.

Private detectives are licensed by the state in which they live after passing a competitive examination and a criminal background check. Some states require a period of classroom training and must have experience with a weapon as well.

Organization

The detective branch in most large police agencies is organized into several squads or departments, each of which specializes in investigation into a particular type of crime or a particular type of undercover operation, which may include: homicide
Homicide
Homicide refers to the act of a human killing another human. Murder, for example, is a type of homicide. It can also describe a person who has committed such an act, though this use is rare in modern English...

; robbery
Robbery
Robbery is the crime of taking or attempting to take something of value by force or threat of force or by putting the victim in fear. At common law, robbery is defined as taking the property of another, with the intent to permanently deprive the person of that property, by means of force or fear....

; 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...

; auto theft; organized crimes; missing persons
Missing Persons
Missing Persons is an American band who plays a blend of New Wave and Pop rock. The band was founded in 1980 in Los Angeles by guitarist Warren Cuccurullo, vocalist Dale Bozzio, and drummer Terry Bozzio. They went on to add bassist Patrick O'Hearn and keyboardist Chuck Wild. Dale's quirky voice...

; juvenile crime; fraud
Fraud
In criminal law, a fraud is an intentional deception made for personal gain or to damage another individual; the related adjective is fraudulent. The specific legal definition varies by legal jurisdiction. Fraud is a crime, and also a civil law violation...

; narcotics; vice; criminal intelligence
Criminal intelligence
Criminal Intelligence is information compiled, analyzed, and/or disseminated in an effort to anticipate, prevent, or monitor criminal activity....

; aggravated assault/battery
Battery (crime)
Battery is a criminal offense involving unlawful physical contact, distinct from assault which is the fear of such contact.In the United States, criminal battery, or simply battery, is the use of force against another, resulting in harmful or offensive contact...

; sexual assault
Sexual assault
Sexual assault is an assault of a sexual nature on another person, or any sexual act committed without consent. Although sexual assaults most frequently are by a man on a woman, it may involve any combination of two or more men, women and children....

; computer crime
Computer crime
Computer crime, or cybercrime, refers to any crime that involves a computer and a network. The computer may have been used in the commission of a crime, or it may be the target. Netcrime refers to criminal exploitation of the Internet. Such crimes may threaten a nation’s security and financial health...

; domestic violence
Domestic violence
Domestic violence, also known as domestic abuse, spousal abuse, battering, family violence, and intimate partner violence , is broadly defined as a pattern of abusive behaviors by one or both partners in an intimate relationship such as marriage, dating, family, or cohabitation...

; surveillance
Surveillance
Surveillance is the monitoring of the behavior, activities, or other changing information, usually of people. It is sometimes done in a surreptitious manner...

; and arson
Arson
Arson is the crime of intentionally or maliciously setting fire to structures or wildland areas. It may be distinguished from other causes such as spontaneous combustion and natural wildfires...

, among others.

Where 'detective' is a title preceding someone's name, it is abbreviated Det.

Street work

Detectives have a wide variety of techniques available in conducting investigations. However, the majority of cases are solved by the interrogation of suspects and the interviewing of witnesses, which takes time. Besides interrogations, detectives may rely on a network of informants they have cultivated over the years. Informants often have connections with persons a detective would not be able to approach formally. Evidence collection and preservation can also help in identifying a potential suspect(s).

Criminal investigation: the investigation of criminal activity is conducted by the police. Criminal activity can relate to road use such as speeding, drunk driving, or to matters such as theft, assault, fraud, etc. When the Police have concluded their investigation a decision on whether to charge somebody with a criminal offence will often be made by prosecuting counsel having considered the evidence produced by the Police.

In criminal investigations, once a detective has suspects in mind, the next step is to produce evidence that will stand up in a court of law. The best way is to obtain a confession from the suspect; usually, this is done by developing rapport and at times by seeking information in exchange for potential perks available through the Attorney's Office, such as entering for a lesser sentence in exchange for usable information. Detectives may lie, mislead and psychologically pressure a suspect into an admission or confession as long as they do this within procedural boundaries and without thugs of violence or promises outside their control.

Forensic evidence

Physical forensic evidence
Forensic identification
Forensic identification is the application of forensic science, or "forensics", and technology to identify specific objects from the trace evidence they leave, often at a crime scene or the scene of an accident. Forensic means "for the courts"....

 in an investigation may provide leads to closing a case. Forensic science (often shortened to forensics) is the application of a broad spectrum of sciences to answer questions of interest to the legal system. This may be in relation to a crime or to a civil action. Many major police stations in a city, county, or state, maintain their own forensic laboratories.

Records investigation

Detectives may use public and private records to provide background information on a subject. Police detectives can search through files of fingerprint records. Police
Police
The police is a personification of the state designated to put in practice the enforced law, protect property and reduce civil disorder in civilian matters. Their powers include the legitimized use of force...

 maintain records of people who have committed felonies
Felony
A felony is a serious crime in the common law countries. The term originates from English common law where felonies were originally crimes which involved the confiscation of a convicted person's land and goods; other crimes were called misdemeanors...

 and some misdemeanor
Misdemeanor
A misdemeanor is a "lesser" criminal act in many common law legal systems. Misdemeanors are generally punished much less severely than felonies, but theoretically more so than administrative infractions and regulatory offences...

s. Detectives may search through records of criminal arrests and convictions, photographs or mug shots, of persons arrested, and motor vehicle records.

With a warrant, police detectives can also search through credit card
Credit card
A credit card is a small plastic card issued to users as a system of payment. It allows its holder to buy goods and services based on the holder's promise to pay for these goods and services...

 records and bank statement
Bank statement
An account statement or a bank statement is a summary of all financial transactions occurring over a given period of time on a deposit account, a credit card, or any other type of account offered by a financial institution....

s, hotel registration information, credit reports, answer machine messages, and phone conversations.

See also

  • Detective fiction
    Detective fiction
    Detective fiction is a sub-genre of crime fiction and mystery fiction in which an investigator , either professional or amateur, investigates a crime, often murder.-In ancient literature:...

  • Investigator
    Investigator
    Investigator may refer to:*Clinical investigator, an investigator involved in a clinical trial*Detective, a person who investigates crimes, can be a rank and job in a police department, state or federal employee, or a civilian called a private detective...

  • Police rank
    Police rank
    - Australia :Generally, all police forces of Australia follow this rank structure with some individual state police forces have ranks differing slightly.Insignia of rank displayed on epaulette in italics and brackets...

  • Special Agent
    Special agent
    Special agent is usually the title for a detective or investigator for a state, county, municipal, federal or tribal government. An agent is a worker for any federal agency, and a secret agent is one who works for an intelligence agency....

  • Sherlock Holmes
    Sherlock Holmes
    Sherlock Holmes is a fictional detective created by Scottish author and physician Sir Arthur Conan Doyle. The fantastic London-based "consulting detective", Holmes is famous for his astute logical reasoning, his ability to take almost any disguise, and his use of forensic science skills to solve...

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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