London rail face-scan trial yields no alert-led arrests
A British Transport Police facial-recognition trial scanned more than half a million faces but produced one incorrect watchlist alert and no arrests caused by an alert, the Guardian reported on September 29. The six-month pilot covered 18 deployments at busy London railway stations between February and July. Records obtained through a freedom-of-information request put equipment and staffing costs at £320,786 and police time at almost 100 hours. Why it matters: Rail passengers had their biometric data processed at scale, while the system generated no correct watchlist match during the reported period. That result gives lawmakers and oversight bodies a concrete deployment record for judging whether the intrusion was proportionate. ...