Ask critics of police face recognition why they're so skeptical and they'll likely cite unreliability as one factor. What if the technology flags an innocent person? Unfortunately, that caution appears to have been warranted to some degree. South Wales Police are facing a backlash after they released data showing that their face recognition trial at the 2017 Champions League final misidentified thousands as potential criminals. Out out of 2,470 initial matches, 2,297 were false positives -- about 92 percent.
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