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BiasHigh

Chicago Police's Strategic Subject List Reportedly Biased Along Racial Lines

Occurred
Aug 1, 2012
Published
Aug 21, 2017
Source
AI Incident Database

Summary

The Chicago Police Department reportedly used person-based predictive policing models, including the Strategic Subject List and Crime and Victimization Risk Model, to assign violence-risk scores to hundreds of thousands of residents. Official and media reports alleged that the program gave police a mathematically fragile basis for treating heavily policed residents as future victims or suspects, with Black Chicago residents especially exposed to the consequences of that scoring.

Developers

  • Chicago Police Department

Deployers

  • Chicago Police Department

Harmed parties

  • Minority groups
  • General public of Chicago
  • General public
  • Economically vulnerable communities
  • communities of color
  • Black people
  • Black Chicago residents

Classification

Category confidence: 95%
Severity confidence: 90%

Rationale: Algorithmic bias in predictive policing targeting communities of color constitutes significant harm and potential civil rights violations.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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