Whatcom County work group hears plans to validate local use of PSA pretrial risk tool

Jun 6, 2025

Dr. Zachary Hamilton outlined a statistical validation project for the Public Safety Assessment (PSA), describing measures the research team will use to test accuracy, time windows and potential bias in Whatcom County data; the project is funded in part through an AOC grant.

The full story

Judge Evan Jones convened a meeting of the Whatcom County Pretrial Processes Work Group and invited Dr. Zachary Hamilton to present on a project to validate the Public Safety Assessment (PSA) that local pretrial services have been using.

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