United Kingdom, West Midlands

West Midlands Police

Stalking and harassment harm escalation model

OperationalFOI disclosurePAI-7A1A8A97

Body
West Midlands Police
Country
United Kingdom
Area
West Midlands
Technology
Stalking and harassment harm escalation model
Supplier
Not stated in the source
Status
Operational
In routine use by the named body, on the evidence of a public source.
Stage
In use now
Since
Not known
Legal basis
Not stated in the source
Oversight
Reviewed by the West Midlands Police Data, Technology and Operational Ethics Panel, which asked in 2024/25 for the project to return after further development.
Evidence
FOI disclosure
Freedom of information response
Source
West Midlands Police FOI response 1948A25, December 2025
Last checked
Record code
PAI-7A1A8A97

Notes

A freedom of information response from West Midlands Police (reference 1948A25, in its December 2025 disclosure log) says there are "currently four machine learning models that are being used to provide information by way of making predictions", created by its in-house Data Analytics Lab. One is a stalking and harassment harm escalation model that estimates the probability that people who have stalked or harassed others will go on to commit high-harm crimes; a similar model estimates the probability that victims of stalking and harassment will become victims of high-harm crime. The response does not say how these predictions are used or since when. The force's Data, Technology and Operational Ethics Panel annual report for 2024/25 describes a "stalking algorithm" that the panel challenged over accuracy, given "the possibility of high numbers of false negatives/positives", and over the potential for it to be considered a method of predictive policing, and says the project was asked to return to the panel "after further development"; no later panel decision was found. No supplier or start date is given.

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Stalking and harassment harm escalation model elsewhere in United Kingdom

See them in the tracker
Stalking and harassment harm escalation model elsewhere in United Kingdom
DeploymentCountrySupplierSinceStatusChecked
Avon and Somerset PolicePredictive Analytics Programme United KingdomAvon and Somerset Built in-house 2017 Operational
Bristol City CouncilThink Family Database and child exploitation risk models United KingdomBristol Not specified 2016 Discontinued
Ministry of JusticeIndividual Risk Scoring United KingdomEngland and Wales (research phase) Developed in-house (Ministry of Justice data science team) 2023 Proposed
Essex PoliceKnife Crime and Violence Model (Fearless Futures) United KingdomEssex — — Trial
Lincolnshire PoliceCESIUM child exploitation risk identification United KingdomLincolnshire Trilateral Research (CESIUM) 2023 Operational
Nottinghamshire PoliceCESIUM child exploitation risk identification United KingdomNottinghamshire Trilateral Research 2024 Trial
West Yorkshire PoliceDomestic Abuse Assessment Tool (machine learning risk prediction) United KingdomWest Yorkshire — — Proposed
Thames Valley PoliceDARAT (Domestic Abuse Risk Assessment Tool, machine learning) United KingdomThames Valley Solvarithm Ltd (contractor) — In development
Metropolitan PoliceStalking Threat Assessment Centre machine learning triage United KingdomLondon — — Operational
Metropolitan PoliceGangs Violence Matrix (individual risk and harm scoring database) United KingdomLondon — 2012 Discontinued