Abstract

Hot spot policing involves the deployment of police patrols to places where high levels of crime have previously concentrated. The creation of patrol routes in these hot spots is mainly a manual process that involves using the results from an analysis of spatial patterns of crime to identify the areas and draw the routes that police officers are required to patrol. In this article we introduce a computational approach for automating the creation of hot spot policing patrol routes. The computational techniques we introduce created patrol routes that covered areas of higher levels of crime than an equivalent manual approach for creating hot spot policing patrol routes, and were more efficient in how they covered crime hot spots. Although the evidence on hot spot policing interventions shows they are effective in decreasing crime, the findings from the current research suggest that the impact of these interventions can potentially be greater when using the computational approaches that we introduce for creating hot spot policing patrol routes.

Highlights

  • Hot spot policing is a type of intervention that is increasingly used by police agencies for decreasing crime [1]

  • The standard deviation for the length of the hot spot policing routes was much greater for routes created using the manual approach, indicating that the manual approach generated routes that varied much more in their length than the computational approaches

  • The two computational approaches—HotStar and HotSee—covered areas that accounted for 19% more robberies in Florianópolis and 44% more robberies in Joinville than the manual approach, suggesting that if either of the two computational techniques were used to decide where hot spot policing patrols were deployed, this could lead to a greater decrease in crime than if the patrol routes using the manual approach were used

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Summary

Introduction

Hot spot policing is a type of intervention that is increasingly used by police agencies for decreasing crime [1]. Hot spot policing involves the targeted deployment of police patrols to locations where high levels of crime have previously been observed [2,3]. The spatial analysis involves a police crime analyst (or on some occasions, analysis assistance from an academic researcher) identifying where hot spots of crime are located. The results from this analysis are used by a police officer who is familiar with the area and who has patrol resource deployment responsibility to determine the routes the patrols will cover

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