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What strategies “work” in reducing crime and disorder in policing? Hundreds of examinations of police activity exist, and there are over 100 which use at least experimental and quasi-experimental designs to arrive at believable conclusions. The Evidence-Based Policing Matrix is a research-to-practice translation tool that organizes these stronger studies visually, allowing agencies to view the field of research, from its generalizations to its particulars. The Matrix is updated with all qualifying studies through December, 2010.
The Matrix below categories and visualizes these evaluations according to three common dimensions of crime prevention – the nature of the target, the extent to which the strategy is proactive or reactive, and the specificity or generality of the strategy (see the Matrix Key to learn more). This visualization reveals three-dimensional clusters of effective studies, or "realms of effectiveness." These realms provide insights into the nature and commonalities of effective police strategies and can be used by police agencies to guide developing future tactics and strategies, or assessing their tactical portfolio against the field.
Click here for articles explaining the Matrix in detail. You can download an Excel spreadsheet of all the studies and codings of the Matrix here. Click here to access free videos and materials about the Matrix from our Evidence-Based Policing Workshop. Click here to learn more about the BJA-funded Matrix Demonstration Project.
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Matrix Demonstration Project
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