Police History 66 Law enforcement 29 Public relations 23 Criminal justice, Administration of 15 Police administration 13 Crime prevention 12 Crime 10 Politics and government 10 Social conditions 8 Addresses, essays, lectures 7 Complaints against 7 Discrimination in law enforcement 7 Social aspects 7 Crime and criminals 6 Philosophy 6 Police-community relations 6 Community policing 5 Riots 5 Human rights 4 Police training 4 Political activity 4 Appleby, John, Sir (Fictitious character) 3 Coal Strike, Great Britain, 1984-1985 3 Crimes against 3 Criminal investigation 3 Criminology 3 Demonstrations 3 Discrimination in criminal justice administration 3 Electronic surveillance 3