Key points
- The Home Office published a legal mandate for live facial recognition in immigration enforcement, last updated on 29 October 2026.
- Alerts go to trained staff, and the document says the system does not decide on stops or arrests.
- Watchlists must be time-limited, purpose-specific and authorised for each deployment.
- Data from people who do not trigger an alert is deleted immediately, the Home Office said.
The Home Office has set out the legal basis for using immigration facial recognition in enforcement work. The legal mandate document was first published on 22 June 2026 and last updated on 29 October 2026.
It says Immigration Enforcement uses overt live facial recognition to identify people of immigration enforcement interest. Use is limited to purposes linked to immigration control, border security, removal, deportation or immigration-related offending. News reports on 4 November said the Home Office plans to use the cameras at transport hubs and public events.
How watchlists and alerts work
According to the document, each watchlist must be specific to a deployment and a purpose, limited in time and no broader than necessary. A person can be included only if they fall within an authorised, objectively defined category and inclusion is necessary and proportionate. Intelligence alone cannot widen those categories.
The Home Office said the technology creates no new enforcement powers. Alerts are reviewed by trained staff, and no action may rest solely on an alert. Any stop or arrest must rely on an existing legal power.
Legal basis and oversight
The mandate cites the Immigration Act 1971 and the Immigration (Collection, Use and Retention of Biometric Information) Regulations 2021. It also refers to the 2019 Bridges court ruling on police use of the technology, as supporting rather than primary authority. The department listed a data protection impact assessment, an equality impact assessment and oversight by the Information Commissioner’s Office and the Biometrics and Surveillance Camera Commissioner.
The document was updated days before the government announced plans for a separate law and watchdog covering police use. We covered that in our report on the UK police facial recognition law. For background on how the technology works, see our guide to face recognition uses and limits.
Open questions
The document does not say who grants authorisation for each deployment. Will the watchlist categories and deployment criteria be published in full? And how will the new police watchdog relate to a technology used by immigration officers?
