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Predicting the impact of changing New Zealand's sentencing laws

National Criminal Justice Modelling Workshop: 2003

Presenter: Chris Clark, Ministry of Justice, New Zealand

Overview of presentation:

New Zealand's sentencing and parole laws underwent a major change in June 2002 with the commencement of the Sentencing Act and Parole Act. These Acts changed the laws in areas such as the types of sentences available to be imposed, the lengths of custodial sentences to be imposed and the amount of time to be served in prison before being considered for release. Different options for each change were modelled (where possible) to estimate the impact the changes would have on the criminal justice system. Policy decisions on which option to proceed with were based (at least in part) on the results of these modelling exercises.

I will discuss the process that was involved in this modelling, in particular, the positive interaction between the modeller and the policy developers. With over twelve months since the Acts commenced, I will also discuss the lessons learned with hindsight.

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Last reviewed: Feb 8, 2007, Last modified: Dec 13, 2006