If you like to browse the bookshelves, some general call numbers to help you locate books by broad topics are:
Subclass HV
HV1-9960 Social pathology. Social and public welfare.
Criminology
HV5001-5720.5 Alcoholism.
HV5725-5770 Tobacco habit
HV5800-5840 Drug habits. Drug abuse
HV6001-7220.5 Criminology
HV7231-9960 Criminal justice administration
HV7428 Social work with delinquents and criminals
HV7431 Prevention of crime, methods, etc.
HV7435-7439 Gun control
HV7551-8280.7 Police. Detectives. Constabulary
HV7935-8025 Administration and organization
HV8301-9920.7 Penology. Prisons. Corrections
HV9051-9230.7 The juvenile offender. Juvenile delinquency.
Reform schools, etc.
HV9261-9430.7 Reformation and reclamation of adult
prisoners