HART — Durham Constabulary's Machine-Learning Custody-Risk Tool
United Kingdom
Durham Constabulary (UK) used a machine-learning tool, developed with Cambridge, to classify arrestees' reoffending risk for custody decisions from 2016-2021, …
United States of America · Sacramento · See the United States of America profile · See the Sacramento profile
Evidence: Descriptive / self-reported Top 94% 27/100 · Ask Evidence Copilot about this practice
CDCR has used the CSRA actuarial algorithm to score parolees' reoffending risk since 2010, yet the state told lawmakers in 2025 no high-risk automated system was in use, disclosing CSRA and five others only in a June 2026 report.
Since being written into California's parole regulations in 2010 (15 CCR §3768.1), the California Department of Corrections and Rehabilitation (CDCR) has used the California Static Risk Assessment (CSRA) to score nearly every offender's likelihood of a felony arrest within three years of release to parole, based on static factors such as age, gender and criminal history, sorting cases into five risk tiers from Low to High Risk Violence.
CSRA is intended to inform parole decisions by classifying offenders into risk tiers using static, non-modifiable factors.
CDCR itself has noted that staff can perform the CSRA evaluation manually, meaning the automated scoring is a choice rather than an operational necessity.
A 2023 California law required state agencies to disclose their use of high-risk automated decision systems, and in 2025 the state reported using none. The Department of Technology's own June 2026 legislative report reversed that claim, revealing six systems already in active use, CSRA among them. The disclosure gap surfaced only after investigative reporting, and came the same month a bill to add guardrails on algorithmic parole decisions, SB 1248, failed in the legislature.
This is a cautionary, transparency-failure case, not a demonstrated success. A state agency reported zero high-risk automated decision systems in use, only to have that claim reversed by its own subsequent report; the fact that CSRA's automated scoring is a discretionary choice rather than a necessity sharpens the transparency question at the centre of this case.
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United Kingdom
Durham Constabulary (UK) used a machine-learning tool, developed with Cambridge, to classify arrestees' reoffending risk for custody decisions from 2016-2021, …
Brazil
Brazil's National Council of Justice runs Sinapses, a national catalogue where all AI models used or developed by the Brazilian …
Australia
Australia's Digital Transformation Agency piloted a draft AI impact-assessment framework with 21 volunteer federal agencies, testing whether it caught risks …
Chile
Since 2021, Universidad Adolfo Ibáñez's GobLab has independently catalogued automated decision systems used by the Chilean state. Its 2026 report …
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