Situational crime prevention: what we know and what we are starting to understand. Professor Kate Bowers UCL Department of Security and Crime Science University College London (UCL). Overview. Situational prevention: what we know What are situational approaches?
Professor Kate Bowers
UCL Department of Security and Crime Science
University College London (UCL)
Bowers and Johnson 2013
Individual publication effect sizes (odds ratios) for each observation
Weighted publicationmean effect sizes by different moderator variables
Bowers, K. J., Johnson, S. D.,
and Hirschfield, A. F. G. (2004a).
e.g. total cost of scheme/no of households
e.g. number of locks fitted, offenders completing rehabilitation, number of hours of rehabilitation provided
Bowers, K. J., Johnson, S. D., Hirschfield, A. F. G. (2004b).
Figure 1a: Direct Linear Relationship
Figure 1b: Positive relationship with diminishing returns
Figure 1c: Positive relationship with a capped outcome at a certain level of intensity
Figure 1d: Positive relationship followed by tail-off of returns
Intensity measure explained 62% variance in access via rear burglary ratio; not significant with access via front or other
After 12 months, £1.86 return for every pound spent
Publicity Strategies terms of crime reduction- what else should we consider?
Crime rate with publicity
Crime rate without publicity
Johnson and Bowers 2003
Systematic Review of SCP Displacement/ Diffusion terms of crime reduction- what else should we consider?
Guerette and Bowers 2009
Johnson, Bowers and Guerette 2012