Police History 168 Law enforcement 85 Police-community relations 57 Police administration 55 Crime 51 Social conditions 48 更多 ... Politics and government 41 Criminal justice, Administration of 29 Criminals 26 Complaints against 25 Crime prevention 25 Discrimination in law enforcement 25 Race relations 24 Political aspects 23 Attitudes 17 Criminal investigation 17 Internal security 17 Police brutality 17 Police misconduct 17 African Americans 16 Law and legislation 15 National security 15 Prevention 15 Social control 15 Armed Forces 14 Government policy 14 Murder 14 Police corruption 14 Social aspects 14 少 ...