By Gary Cordner

This guidebook presents a practical framework for understanding evidence-based policing (EBP). The framework is practical in the sense that it is understandable, feasible, and directly tied to making policing more effective. In other words, it isn’t about collecting data for its own sake, or about doing research for its own sake. Rather, it is about serving and protecting the public as effectively as possible. That said, this EBP framework is demanding because the police mission is demanding.1 The framework identifies data that should be collected, analyses that should be conducted, and research that should be carried out — all for the purpose of making policing better. Improving policing depends on producing and then using the best available evidence when making decisions, developing policies, and designing programs and practices. The framework is presented in 45 small “bytes.” The number is arbitrary, but it illustrates the fact that policing is a broad function in a society that expects a lot from the police. The people who manage police organizations need a lot of information in order to know how well (or how poorly) things are going and what problems need attention. In addition, the public and political leaders want information by which to judge how well their police are performing, as reflected in the growing emphasis on transparency and accountability.  

Washington, DC: U.S. National Institute of Justice, 2020. 138p.