Abstract
Police patrol, motorized and foot, has a long history of being used as a crime prevention method. Scientific evaluations of this crime prevention technique have been undertaken for at least 40 years, with mixed results. One of the important questions to be answered regarding the implementation of a police patrol is the presence of crime displacement: criminal activity simply moving around the corner, away from the primary patrol area. Previous investigations of this phenomenon have found that, most often, crime displacement is nonexistent or less than crime reductions in the primary area of interest. In this article, we investigate local crime displacement. We use a spatial point pattern test that can identify changes in the spatial patterns/distribution of crime even if crime in all areas has decreased. We find moderate evidence for the presence of this spatial shift and discuss the implications.
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