Police History 200 Murder 147 Investigation 134 Law enforcement 129 Crime 79 Police administration 78 more ... Police-community relations 68 Politics and government 53 Complaints against 49 Social conditions 47 Crimes against 43 Criminal justice, Administration of 41 Crime prevention 38 Prevention 32 Police corruption 30 Internal security 26 Criminal investigation 25 Missing persons 25 Police brutality 25 Police misconduct 25 Attitudes 24 Job stress 24 Human rights 23 Policewomen 22 Race relations 21 Police psychology 20 Political aspects 20 African Americans 19 Criminals 18 less ...