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The Hotspot Matrix as a framework for the spatio-temporal targeting of crime reduction

The Hotspot Matrix as a framework for the spatio-temporal targeting of crime reduction. Jerry Ratcliffe Temple University www.jratcliffe.net jhr@temple.edu. Intelligence-led crime reduction. UK Criminal Intelligence Strategy Group (Working Group 3) said:.

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The Hotspot Matrix as a framework for the spatio-temporal targeting of crime reduction

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  1. The Hotspot Matrix as a framework for the spatio-temporal targeting of crime reduction Jerry Ratcliffe Temple University www.jratcliffe.net jhr@temple.edu

  2. Intelligence-led crime reduction UK Criminal Intelligence Strategy Group (Working Group 3) said: “Analysts should not simply provide management with statistics and colourful charts but a real understanding of criminal activity and the direction in tackling it.”

  3. Four intelligence products UK National Intelligence Model StrategicAssessments TacticalAssessments TargetProfiles ProblemProfiles

  4. Four intelligence products UK National Intelligence Model • Aim: Identify established and emerging crime/incident series and hotspots. • Purpose: Assist investigative needs, hotspot management, targeting, crime reduction and prevention. StrategicAssessments TacticalAssessments TargetProfiles ProblemProfiles

  5. The Hotspot Matrix as a framework for the spatio-temporal targeting of crime reduction • Need to communicate fairly simple ideas to busy people • Lack of environmental criminology knowledge in practitioner community • Establish a common language for ourselves and the practitioners • Take ‘what works’ further • Process not dependent on particular software

  6. f Time 0000 1200 2359 Temporal components Diffused

  7. f Time 0000 1200 2359 Temporal components Focused

  8. f Time 0000 1200 2359 Temporal components Acute

  9. Spatial components + + + + + + + + + + + + Dispersed

  10. Spatial components + + + + + + + + + + + + Clustered

  11. Spatial components + + + + + + + + + + + + Hotpoint

  12. Spatial components + Hotpoint

  13. Hotpoint Acute

  14. Dispersed Focused

  15. + + + + + + + + + + + + + + + + + + + + + + + + + Spatial Temporal

  16. + Prevention + + + + + + + + + + + + + + + + + + + + + + + + Detection Spatial Temporal

  17. + Prevention + + + + + + + + + + + + + + + + + + + + + + + + Prevention Spatial Temporal

  18. + + + + + + + + + + + + + + + + + + + + + + + + + Spatial Temporal

  19. + + + + + + + + + + + + + + + + + + + + + + + + + Spatial Temporal

  20. Caveats • First step • No definitive rules for classifications • Contents of the matrix are examples only • Could have a more complicated matrix…

  21. Summary • Simple to use and communicate • Not software dependent • Practitioners and academics could fill in what works, and communicate using a common language

  22. The Hotspot Matrix as a framework for the spatio-temporal targeting of crime reductionAwaiting publication in Police Practice and ResearchCopies of the paper and slides are at jratcliffe.netClick on Conference notes Jerry Ratcliffe Temple University www.jratcliffe.net jhr@temple.edu

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