Study Search Results Your query returned 2 results. Results per page: 25 50 100 Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. (?) Study Title/Investigator 1. Evaluation of CeaseFire, a Chicago-based Violence Prevention Program, 1991-2007 (ICPSR 23880) Skogan, Wesley G. 2. Indirect Impacts of Community Policing, Jersey City, NJ, 1997-1999 (ICPSR 29430) Weisburd, David; Wyckoff, Laura; Ready, Justin; et al.