Search Results Use the search box below to revise your search, or start a new search. Studies (1) Variables Publications Your query returned 1 studies. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Role of Police Psychology in Controlling Excessive Force in 50 Large Cities in the United States, 1992 (ICPSR 6402) Scrivner, Ellen M.