Systematic Review of the Empirical Evidence of Spatial ：对空间的实证证据的系统评价.ppt

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2018-06-24 发布于浙江
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Systematic Review of the Empirical Evidence of Spatial ：对空间的实证证据的系统评价.ppt

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Systematic Review of the Empirical Evidence of Spatial ：对空间的实证证据的系统评价

Thank you for your attentionLucia Summersl.summers@ucl.ac.uk 2010 International NPIA-Cambridge Conference on Evidence-Based Policing * * * * * * * * * * CHECK THESE ARE UP TO DATE * * * * * * * * * We use the catchment control for the four that report such data * * * * UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE UCL DEPARTMENT OF SECURITY AND CRIME SCIENCE Systematic Review of the Empirical Evidence of Spatial Displacement and Diffusion of Benefit among Geographically Focused Policing Initiatives Dr Shane D Johnson, Dr Kate Bowers, Dr Rob Guerrette, Lucia Summers and Dr Suzanne Poynton Department of Security and Crime Science University College London (UCL) 2010 International NPIA-Cambridge Conference on Evidence-Based Policing Overview Background: The need for a review Methods: Inclusion criteria Search strategy Study coding Analytic methods Results Authors’ effect sizes Simple proportions Meta-analysis Background Criticisms that focused policing efforts do not address the “root causes” of crime Displacement is the relocation of crime from one place, time, target, offence, tactic or offender to another as a result of some crime prevention initiative Of the six possible types, spatial displacement is the form most commonly recognised (Eck 1993) At the extreme, widespread displacement stands to undermine the effects of geographically focused policing actions Eck, J.E. (1993). The threat of crime displacement. Criminal Justice Abstracts, 253:527-546. Background (cont.) Research suggests that crime displacement is rarely total At the other end of the displacement continuum is the phenomenon of diffusion of cr