Offender Group Reconviction Scale (OGRS)

The Offender Group Reconviction Scale (OGRS) is the name of a series of actuarial risk assessment instruments for use with convicted criminal offenders. Each version of OGRS has been developed for and used by the adult correctional services of England and Wales, directed since 2004 by the National Offender Management Service, which in 2017 became Her Majesty’s Prison and Probation Service (HMPPS). Versions of OGRS have been used to predict general and sometimes more serious recidivism among probationers since 1996 and prisoners since 2009. OGRS scores are of considerable importance in court reporting as well as in allocation of offender services and research. Successive updates to OGRS have amended the measurement and scoring of its risk factors to improve its usability and validity as ...

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