Espionage Prevention Terrorism 5 Electronic surveillance 2 Imprisonment 2 International cooperation 2 Law and legislation 2 more ... Legal status, laws, etc 2 National security 2 Organized crime 2 Political aspects 2 Prosecution 2 Sentences (Criminal procedure) 2 Terrorists 2 Trials 2 Access control 1 Data mining in law enforcement 1 Defense information, Classified 1 Electronic intelligence 1 Government information 1 Government policy 1 History 1 Infiltration (Military science) 1 Intelligence service 1 Leaks (Disclosure of information) 1 Moral and ethical aspects 1 Official secrets 1 Professional ethics 1 Spies 1 less ...