© A B Academic Publishers-Printed in Great Britain STRATEGIES AND TACTICS: CONTEXTS AND MECHANISMS- THE ESSENCE OF EFFECTIVE PREVENTION

Targeting repeat victimization comprises a way of achieving effectiveness, efficiency and equity in crime prevention. Research has found that victimization leads to increased risk of further victimization, especially in the short term; that 'hot spots ' have a disproportionate number of repeat victims; and that repeat offences tend to be committed by prolific offenders. The development of successful crime reduction tactics and strategies also requires detailed attention to the mechanisms through which patterns are generated and may be disrupted, and the contexts relevant to differing mechanisms. Inattention to these is liable to lead to the implementation of ineffective measures or measures with counterproductive unintended consequences. Four generic approaches appear to have particular promise in devising effective crime reduction initiatives, including those targeting repeat victimization: situational analysis and problem-solving; cumulative protective intervention; synthesis of prevention, detection and disruption; and near neighbour mobilization. The aim of crime prevention is clearly to reduce the number of crimes that would otherwise happen. It is preferable to avoid displacing prevented crimes to other targets. If there is some displacement, that from the less to the more victimize