Offender Group Reconviction Scale

The Offender Group Reconviction Scale (OGRS) is a tool, used by the Ministry of Justice in England and Wales, which uses statistical methods to assess the probability of a person reoffending using information about a person's past - specifically any criminal history.[1][2]

  1. ^ Hamilton, Melissa; Ugwudike, Pamela (2023-07-26). "A 'black box' AI system has been influencing criminal justice decisions for over two decades – it's time to open it up". The Conversation. Archived from the original on 2023-08-01. Retrieved 2025-03-23.
  2. ^ Copas, John; Marshall, Peter (1998). "The Offender Group Reconviction Scale: A Statistical Reconviction Score for Use by Probation Officers". Journal of the Royal Statistical Society. Series C (Applied Statistics). 47 (1): 159–171. doi:10.1111/1467-9876.00104. ISSN 0035-9254. JSTOR 2986060.

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