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25 techniques

Definition

Ronald Clarke's classification of situational crime prevention methods into 25 specific techniques organised under five mechanisms: increasing effort, increasing risk, reducing rewards, reducing provocations, and removing excuses. The classification has been revised several times; the 2003 version is the most cited.

Related terms

CPTED
Crime Prevention Through Environmental Design. An applied design discipline using natural surveillance (sightlines, lighting), territorial reinforcement (ownership cues), natural access control (barriers,...
Crime script analysis
A method developed by Derek Cornish that maps the sequential steps an offender must complete to commit a particular crime type, from...
Diffusion of benefits
The spread of crime-reduction effects beyond the area or targets directly covered by an intervention. Offenders uncertain about the extent of a...
Displacement
The relocation of crime following a prevention intervention. Can take five forms: territorial (to another place), temporal (to another time), target (to...
Opportunity structure
The set of environmental, social, and product conditions that make specific crimes more or less easy to commit. Situational prevention works by...

Explained in

  • Situational Crime PreventionRonald Clarke's classification of situational crime prevention methods into 25 specific techniques organised under five mechanisms: increasing effort, increasi...

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