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UK POLICE FACIAL RECOGNITION TRIAL: 500K SCANS, ZERO ARRESTS

AI DESK■ 1 MIN READ
WED, SEP 30, 2026

■ AI-SUMMARIZED FROM 1 SOURCE ▸ TIMELINE

A six-month live facial recognition trial at London railway stations scanned over 500,000 faces but resulted in no arrests and just one false-positive alert, according to freedom of information documents obtained by The Guardian.

The trial, which cost £320,000 and consumed nearly 100 police hours, deployed facial recognition technology at major transport hubs. Despite processing half a million faces, the system generated a single alert—which proved incorrect. The figures raise questions about the effectiveness and efficiency of the technology. At roughly £3.20 per scan and £3,200 per police hour invested, the trial yielded no tangible law enforcement outcomes. The results add to ongoing debate over live facial recognition in public spaces. Privacy advocates have criticized the technology's deployment without clear legal frameworks, while police have argued it aids in identifying suspects and missing persons. The trial data comes as UK courts continue examining the legality of facial recognition policing. The Crown Prosecution Service has faced previous challenges over the technology's accuracy and use in evidence.

■ SOURCES

► Techmeme

■ SUMMARY WRITTEN BY AI FROM THE LINKS ABOVE

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