500k facial scans at UK stations yield no arrests, 1 false positive

A six-month trial of live facial recognition technology at London transport hubs scanned over 500,000 faces but resulted in no arrests and only one false positive alert, despite costing £320,000 and consuming nearly 100 police hours. The British Transport Police trial, which aimed to catch offenders and those breaching court orders, has been extended for four months with expansion to Underground stations, though experts question whether the technology's use on public transport networks is proportionate to its limited effectiveness.