Britain's biometrics watchdogs have issued a stark warning that national oversight of AI-powered face scanning used to catch criminals is lagging far behind the technology's rapid expansion. With the Metropolitan Police nearly doubling the number of faces scanned in London over the past year and retailers increasingly deploying the technology, concerns over accountability and effectiveness are mounting.
Watchdogs Sound Alarm on Regulation Gap
Professor William Webster, the biometrics commissioner for England and Wales, stated that the "slow pace of legislation was trying to catch up with the real world" and that "the horse had gone before the cart." Dr. Brian Plastow, his Scottish counterpart, warned that the technology is "nowhere near as effective as the police claim it is" and highlighted a "patchwork legal framework" across the UK. He accused police in England and Wales of "really just marking their own homework."
The commissioners are calling for new laws to govern when and how police use live facial recognition technology, along with a dedicated regulator to clamp down on misuse. Currently, several bodies share oversight, including the Information Commissioner's Office (ICO) and the Equality and Human Rights Commission. The Home Office is considering a new legal framework, even as it plans to nationally introduce what it calls "the biggest breakthrough for catching criminals since DNA matching."
Public Concerns and Misidentification Incidents
Members of the public wrongly flagged as suspected criminals by AI cameras in shops have reported feeling "guilty until proven innocent," with no accountability or recourse for complaints. They described the ICO as "toothless" and unresponsive. Critics argue the technology represents Big Brother-style mass surveillance, endangering civil liberties and data privacy.
So far this year, the Met has scanned over 1.7 million faces in London, an 87% increase from the same period in 2025. An independent audit of the Met's facial recognition technology (FRT) has been indefinitely postponed after police requested delays. Polling by Opinium shows 57% of people believe the systems are "another step towards turning the UK into a surveillance society."
Whistleblower Allegations of Misuse
A whistleblower claimed that shop-based face-scanning systems have sometimes been misused by staff, who "maliciously" added members of the public to watchlists without cause. Paul Fyfe, a former security guard who used Facewatch cameras in Stockton-on-Tees, said that on 10 to 15 occasions, individuals were tagged for malicious reasons, such as personal grudges. This meant other stores using the same software would be alerted whenever those individuals entered.
Facewatch CEO Nick Fisher denied the allegations, stating, "We do not recognise the claims that the incident reporting system is being misused, including the serious allegation that individuals are being added maliciously." He emphasized that the system has safeguards, human review, and strict evidential standards before any individual is added to the database.
Legal and Regulatory Challenges
The ICO had scheduled an audit of the Met's use of AI-powered face scanning for October last year, but the Met requested a delay, citing a legal challenge to its policy, Christmas leave, and New Year policing. The ICO accepted the request, and the audit is no longer certain to go ahead, prompting claims that the regulator is being "insufficiently aggressive." David Davis MP, a former shadow home secretary and civil liberties campaigner, said: "[FRT] is a massive development with all sorts of implications. The ICO should be the defender of the ordinary citizen and should be far more aggressive in what it does."
The ICO and the Met defended the postponement, with the Met stating they "have always been transparent about our use of facial recognition technology and welcome independent scrutiny." The ICO said it is reviewing whether the audit will be rescheduled.
Growing Use in Retail
Retail chains are increasingly adopting face-scanning software to target shoplifters and antisocial behaviour. Sainsbury's, Budgens, and Sports Direct are among those using Facewatch. The technology analyses CCTV footage and compares faces against a private database of known offenders. Polling by Opinium found that nearly a third of adults oppose retail use of facial recognition, and 62% worry about the technology causing trouble for innocent people.
Ian Clayton, a retired health and safety professional, was asked to leave Home Bargains after being wrongly flagged as a thief. He later discovered he had been associated with a shoplifter he happened to stand next to on a previous visit. "It feels very Orwellian," he said. "It left me feeling vulnerable, exposed and a little bit helpless." Warren Rajah, a data strategist, had a similar experience at Sainsbury's, calling it a "civil rights issue that we are slow-waltzing into."
Conclusion
Professor Webster warned that regulation could be three years away at minimum, while the technology is already deployed by a dozen police forces and becoming cheaper. "In time we will see it everywhere, including in the static surveillance camera network," he said. The watchdogs urge immediate legislative action to prevent further erosion of public trust and civil liberties.
