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WF-OP475C

Dutch probation service's OXREC algorithm flawed, leading to incorrect recidivism risk assessments

The Dutch Inspectorate of Justice and Security (Inspectie JenV) published a report finding that the probation service's (Reclassering) OXREC algorithm contains serious flaws, including swapped formulas and incorrect numbers, causing about a quarter of risk assessments to be wrong. The algorithm, used since 2018 for about 44,000 cases per year, also uses variables that can lead to discrimination, such as neighborhood score and income. The Inspectorate recommended immediate correction or temporary suspension. The probation service announced it would temporarily stop using OXREC.

Date it happened
2018-01-01
Organisation involved
Reclassering Nederland
Product, system or model
OXREC
Where this came from
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