NIJ welcomes proposals to replicate seminal studies in several research areas. These solicitations encourage study proposals to revisit programs rated “promising” or “effective” by CrimeSolutions by applying rigorous RCTs where less rigorous quasi-experimental evaluations had initially generated those ratings.
CrimeSolutions is a central resource to help practitioners and policymakers understand what works in justice-related programs and practices. Its purpose is to assist in practical decision making and program implementation by gathering information on justice-related programs and practices and reviewing evaluation and meta-analysis research against standard criteria.
Featured Programs and Practices for Law Enforcement
This is a focused-deterrence group violence reduction strategy (GVRS) designed to reduce or control gun violence in Oakland, Calif. The program is rated Effective.
This program was designed to “slow down” police officers’ thought processes during encounters with citizens. The program is rated No Effects.
Geographically focused policing initiatives increase the presence and visibility of police officers at specific high-crime locations to significantly reduce crime and disorder.
A Program is a specific set of activities carried out according to guidelines to achieve a defined purpose. Program profiles on CrimeSolutions tell us whether a specific program was found to achieve its goals when it was carefully evaluated.
A Practice is a general category of programs, strategies, or procedures that share similar characteristics with regard to the issues they address and how they address them. Practice profiles tell us about the average results from multiple evaluations of similar programs, strategies, or procedures.