Police Murder 14 Investigation 13 Criminal investigation 11 Undercover operations 7 Drug traffic 4 Gangs 4 mer ... History 4 Man-woman relationships 4 Crime 3 Criminals 3 Police corruption 3 African Americans 2 Criminal behavior 2 Equipment and supplies 2 Human trafficking 2 Inner cities 2 Jewel thieves 2 Moles (Spies) 2 Robbery 2 Small cities 2 Social life and customs 2 Survivalism 2 Terrorists 2 Viruses 2 Zombies 2 Abduction 1 Action and adventure films 1 Air pilots 1 Animals 1 mindre ...