Subject
Criminal investigation
Police
Investigation
4
Murder
4
Equipment and supplies
3
History
3
Undercover operations
3
Crime
2
Criminals
2
Drug traffic
2
Gangs
2
Inner cities
2
Law enforcement
2
Police communication systems
2
Small cities
2
Social life and customs
2
Technological innovations
2
Arrest
1
Attitudes
1
Authors
1
Cold cases (Criminal investigation)
1
Colonies
1
Complaints against
1
Confession (Law)
1
Criminology
1
Detectives
1
Extortion
1
Hypnotists
1
Intellectual life
1
Internal security
1
Interpersonal relations
1
Kidnapping
1
Man-woman relationships
1
Moral conditions
1
Motion picture industry
1
Motion pictures
1
Murderers
1
Police corruption
1
Police power
1
Psychologists
1
Research
1
Robbery
1
Social conditions
1
Study and teaching
1
Villages
1
Wolves
1