What is Known About the Effectiveness of Police Practices?

Abstract

We will first briefly review the sources of research evidence we consulted for this review. We then turn to our review of what police should be doing, what police should not be doing, and what we currently know too little about (but which police are currently engaging in). We cover a broad span of police strategies, focusing in particular on a number of innovations in policing that have developed over the past 20 to 30 years (see Weisburd & Braga, 2006). After reviewing the research evidence, we discuss the implications for policing and compare what we know about what strategies police are currently using to what we know is most effective, focusing in particular on strategies in the NYPD.

Keywords: crime, criminology, NYPD, research, police, strategies