Trial of live facial recognition cameras in London stations ends with one false positive

Freedom of information request shows six-month trial cost 320,000, used almost 100 police hours and resulted in no arrests

A six-month trial of live facial recognition (LFR) technology in London's railway stations that cost more than 320,000 and almost 100 hours of police officers' time ended in one false match against a watchlist of suspects and no arrests.

More than half a million faces were scanned between February and July this year in some of the capital's busiest transport hubs during the British Transport Police (BTP) trial of the surveillance technology, which aimed to help catch offenders and people breaching court orders.