The Security Information Service (SIS) (), is the primary domestic national intelligence agency

Intelligence agency

An intelligence agency is a governmental agency that is devoted to information gathering for purposes of national security and defence. Means of information gathering may include espionage, communication interception, cryptanalysis, cooperation with other institutions, and evaluation of public...

 of the Czech Republic

Czech Republic

The Czech Republic is a landlocked country in Central Europe. The country is bordered by Poland to the northeast, Slovakia to the east, Austria to the south, and Germany to the west and northwest....

. It performs duties associated with the analysis, protection and legitimate use of strategically important intelligence regarding the fields of politics

Politics

Politics is a process by which groups of people make collective decisions. The term is generally applied to the art or science of running governmental or state affairs, including behavior within civil governments, but also applies to institutions, fields, and special interest groups such as the...

, economics

Economics

Economics is the social science that analyzes the production, distribution, and consumption of goods and services. The term economics comes from the Ancient Greek from + , hence "rules of the house"...

 and intelligence within the territory of the Czech Republic. Legitimate use is understood to mean the transfer of intelligence to the relevant departments of the government of the Czech Republic.

The SIS controls and takes active measures in the fields of:

• the actions of foreign intelligence services/agents on the territory of the CR,
• the actions of extremist
  Extremism
  Extremism is any ideology or political act far outside the perceived political center of a society; or otherwise claimed to violate common moral standards...
  
   and illegal
  Legality
  The principle of legality is the legal ideal that requires all law to be clear, ascertainable and non-retrospective. It requires decision makers to resolve disputes by applying legal rules that have been declared beforehand, and not to alter the legal situation retrospectively by discretionary...
  
   organizations,
• the actions of terrorist
  Terrorism
  Terrorism is the systematic use of terror, especially as a means of coercion. In the international community, however, terrorism has no universally agreed, legally binding, criminal law definition...
  
   organizations or individuals,
• illegal activities in the Economic
  Economics
  Economics is the social science that analyzes the production, distribution, and consumption of goods and services. The term economics comes from the Ancient Greek from + , hence "rules of the house"...
  
  and industrial zones.

See also

The Research on BIS intelligence and counter-intelligence, 4th ECPR General Conference

http://www.essex.ac.uk/ecpr/events/generalconference/pisa/papers/PP271.pdf