U.S. Department of Justice, Office of Community Oriented Policing Services (COPS): Police Enforcement Strategies to Prevent Crime in Hot Spot Areas (NCJ 223196) is the second report in the Crime Prevention Research Review series. Using advances in mapping technology, it investigates whether focused police efforts in targeted areas help to control crime or merely relocate it. This report summarizes the findings from all rigorous academic studies evaluating police enforcement strategies in hot spot areas. It finds that focusing efforts on places with high crime and calls for service can effectively be used to prevent crime in those locations. Reduced calls for service and other reductions in crime and disorder measures were noted in most studies. Displacement of crime due to the enforcement efforts was not prevalent in those studies that measured displacement.”