Electronic monitoring of offenders

'Electronic monitoring' involves placing a tag around the ankle or wrist of an offender which, in combination with a receiving device, can verify their whereabouts to establish whether they are violating a set of pre-established conditions determined by the courts or probation services. These might be restrictions in terms of the areas where the individual should not be or in terms of a curfew meaning they have to remain in a fixed location (their house for example) during certain hours in a day. 

This systematic review has two objectives. The first is to assess the evidence on whether electronic monitoring has been found effective as a method of reducing reoffending. The second is to tease out how, in what forms, for what offender types and under what conditions electronic monitoring has been found to be effective, ineffective. The research protocol has been included below. 

This systematic review was undertaken by Dr Jyoti Belur and colleagues from UCL Department of Security and Crime Science, University College London as part of the Commissioned Partnership Programme. It is one of a series of reviews.

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