UK trial of live facial recognition at London stations finds no 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. The Guardian reports: British Transport Police said that since the extension there had been three positive confirmed alerts of people who were subsequently confirmed to be complying with sexual harm prevention orders or other imposed court conditions. When Transport for London announced its support for the extension of the trial, it said LFR technology "will target and identify people on police watchlists at key stations chosen for maximum impact" and would "specifically tackle violence against women and girls, whose travel behaviors are shaped by experiences of sexual harassment and sexual offenses." Fraser Sampson, a former biometrics and surveillance camera commissioner for the UK, said the police needed to show that the use of the technology was proportionate. "There many variables and all need to align: the choice of location, times of day, make up of the watchlist and likelihood of people being present and many more." Sampson, who is now a non-executive director of Facewatch, a company that operates facial recognition systems in shops, added: "We know the technology works, but using it in supermarkets to deter shoplifters and prevent attacks on staff is very different from deploying it to catch people on a public transport network." "Success in a shop means no such people coming in. Success for the police trying to catch people means people being caught. In that respect the trial doesn't appear to have been very fruitful. Everything depends on the police watchlists; if you're not on a watchlist, the live FRT cameras do not "see" you and they don't retain your image in the same way as CCTV cameras. However, they are processing special category personal data and the technology must be used in a way that is appropriate, proportionate and necessary. It's for the police to show how any deployment meets those criteria and -- as the ICO [information commissioner's office] has recently reported -- for their oversight boards to hold them firmly to account in doing so." Read more of this story at Slashdot.

Freedom of information request shows six-month trial cost £320,000, used almost 100 police hours and resulted in no arrestsA 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. Continue reading...