A damning review of the police's dangerous experiment with live facial recognition has found it to be unlawful, with serious operational failures.
UK: The Human Rights, Big Data and Technology Project: Independent Report on the London Metropolitan Police Service’s Trial of Live Facial Recognition Technology(pdf) by Proffessor Pete Fussey and Dr Daragh Murray
See: Big Brother Watch response to “utterly damning” review of police facial recognition (link) and see also: 92% false positive rate for police facial recognition system (Statewatch News)