Subject
Undercover operations
73
Police
16
Criminal investigation
8
Drug traffic
7
Intelligence officers
6
Murder
6
History
5
Investigation
5
Man-woman relationships
5
Organized crime
5
Criminals
4
Informers
4
Civil rights
3
Civil rights workers
3
Crime
3
Drug dealers
3
Intelligence service
3
Police patrol
3
Prevention
3
Surveillance operations
3
Terrorism
3
Abuse of administrative power
2
Assassins
2
Communication in law enforcement
2
Corporations
2
Corrupt practices
2
Domestic terrorism
2
Drug enforcement agents
2
Families
2
Forensic linguistics
2
Inner cities
2
Internal security
2
Language
2
Mafia
2
Moles (Spies)
2
Moral and ethical aspects
2
Officials and employees
2
Organized crime investigation
2
Secret service
2
Special forces (Military science)
2
Terrorists
2
White supremacy movements
2
Aircraft accidents
1
Americans
1
Amnesia
1
Arab-Israeli conflict
1
Assassination
1
Authoritarianism
1
Bank robberies
1
Border patrol agents
1
more ...