The UK Ministry of Justice will introduce biometric checks in England and Wales prisons after 179 inmates were released between April 2025 and March 2026[1].
The move matters because an independent review said the mistaken releases a symptom of a broken prison system, and government data show the error averages about three prisoners per week[5][1].
The new policy will be applied across the prison estate in England and Wales, officials said, to verify identities at entry and exit points. The Ministry hopes the technology will close the gap that allowed the errors to occur.
Biometric verification will combine fingerprint and facial‑recognition scans, a method already used in other UK public‑sector settings[2].
While the BBC said 179 erroneous releases, other outlets said “almost 200” prisoners freed in the same period, underscoring the scale of the problem[4][1].
At roughly three accidental releases each week, the error rate has eroded public confidence in the criminal‑justice system and placed additional strain on supervision resources[5].
Officials said the biometric system will provide a reliable, auditable record of who enters and leaves each facility, reducing the chance of future mistakes and improving overall prison security.
“Three prisoners were accidentally released each week, on average.”
By adding fingerprint and facial‑recognition verification, the UK aims to plug a critical loophole that has allowed hundreds of inmates to be freed unintentionally. If successful, the technology could restore public trust, lower supervision costs, and set a precedent for biometric use in other high‑security sectors.
