|Office of Community
Oriented Policing Services
U.S. Department of Justice
The Campbell Collaboration Crime and Justice Coordinating Group (CCJG) partners with the COPS Office to publish the latest findings on effective policing strategies. The COPS Office/CCJG partnership produces short reports called Crime Prevention Research Reviews (CPRRs) which synthesize available data for quick review by law enforcement stakeholders.
The CCJG is an international research network that conducts and disseminates high-quality reviews of existing crime and justice social science evidence. The CCJG methodology uses transparent procedures to find, evaluate, and synthesize relevant research. Each CPRR must have:
Visit the Campbell Collaboration website to learn more about the Campbell Collaboration systematic review process, and read the CPRRs below to see what’s really working!