UK Prisons to Implement Biometric Checks After 179 Mistaken Releases in Year to March

New data from the Ministry of Justice indicates that 179 prisoners were mistakenly released from prisons in England and Wales during the year ending March 2026. This number represents a decrease from 262 in the previous year but remains higher than the 115 recorded in 2023-24.

Mistaken releases can result from misplaced warrants, sentence miscalculations, or errors by courts and other authorities.

The figures prompted an independent review, which described mistaken releases as one symptom of broader systemic problems in the prison system. The review, spanning 200 pages, outlined 33 recommendations to address these issues. It was commissioned following high-profile incidents of erroneous releases.

Incidents One notable case involved a prisoner who was mistakenly released from HMP Chelmsford in October 2025.

After the release, a manhunt ensued, and the prisoner was re-arrested after two days and deported to Ethiopia. The incident sparked protests near the asylum hotel against the use of hotels for housing asylum seekers.

Within two weeks, two additional men were erroneously freed from HMP Wandsworth. One handed himself in, and the other was re-arrested following police searches. These events led to the implementation of new security measures.

The government commissioned the independent review to prevent further mistakes.

Response and Reforms Officials announced plans to roll out biometric checks, including fingerprint and facial recognition, in prisons to track prisoners from initial police contact through the criminal justice system.

Trials are set to begin within six months, with full implementation expected before the end of the current parliamentary term. The government stated it accepts all 33 recommendations from the review. An investment of £82 million will support these changes, including £20 million this year to digitize outdated paper-based processes and enhance staffing and checks.