title: The effects of custodial vs non-custodial sanctions on reoffending: lessons from a systematic review.
abstract: Based on a systematic review of some 23 (out of 300 originally located) studies, it is concluded that most studies show lower rates of re-offending following a non-custodial compared to a custodial sanction. However, this outcome may be biased because, in most quasi-experiments of this kind, subjects with the worst prospects of rehabilitation are likely to be sent to prison. In a meta-analysis limited to five randomised controlled trials and one natural experiment, it is concluded that custodial and non-custodial sanctions do not differ significantly in terms of re-offending. Lessons from this review include, in view of future evaluations, the need to increase randomised controlled trials, to use broader measures of re-offending and rehabilitation, to look at long-term effects, and to deal with possible Hawthorn effects. Equal rates of re-offending do not mean that <<nothing works>> or <<nothing matters>>, but that criminal justice policies should not be based on the belief that short-term confinement will be damaging.
authors.affiliation: University of Lausanne, Lausanne, Switzerland. martin.killias@rwi.unizh.ch
authors.forename: Martin
authors.initials: M
authors.lastname: Killias
authors.forename: Patrice
authors.initials: P
authors.lastname: Villetaz
mesh_terms: D003415:Crime / Q000517:prevention & control*; D003482:Custodial Care; D006801:Humans; D055502:Secondary Prevention; D012920:Social Behavior Disorders / Q000517:prevention & control*