500K Facial Recognition Scans at UK Stations Yield Zero Arrests, One False Positive

A six-month British Transport Police trial of live facial recognition at London railway stations scanned more than 500,000 faces, cost over 320,000 pounds, and produced just one alert with no arrests directly resulting from the technology. That one alert ended up being a false positive. Despite those results, BTP has extended the pilot through November and expanded it to selected Underground stations.