- 360degrees -- A close look at the workings of the U.S. criminal courts system
- Bureau of Justice Assistance -- A component of the Office of Justice Programs, U.S. Department of Justice
- Bureau of Justice Statistics-- Outstanding statistical information on crime, victims, trends, and much more
- California Law -- Fulltext available for the 29 California Codes. Select Penal Code , or search other code titles by keywords
- Corrections Connection Network
- Criminal Procedure: an overview -- From the Legal Information Institute at Cornell University
- Death Penalty Information Center
- International Centre for Criminal Law Reform and Criminal Justice Policy
- Juvenile Justice Committee -- From the American Bar Association
- SEARCH -- National Consortium for Justice Information and Statistics
- Sourcebook of Criminal Justice Statistics Online -- Data about all aspects of criminal justice in the United States
- TRAC -- Transactional Records Access Clearinghouse, providing "statistics on federal law enforcement, staffing and spending."
- American Correctional Association
- Associations & Organizations -- From Officer.Com
- California Highway Patrol Official Directory of State Patrol & State Police -- Directory of websites for all 50 states, including police, academies, associations, news, recruiting, etc.