https://www.theregister.co.uk/2019/07/04/met_police_slammed_for_facial_recognition_practice/

Facial recognition technology trialled by the Metropolitan Police is highly inaccurate and its deployment is likely to be found "unlawful" if challenged in court, an excoriating independent report has found.

Researchers from the Human Rights, Big Data & Technology Project, based at the University of Essex Human Rights Centre, identified significant flaws with the way live facial recognition (LFR) technology has been trialled in London by the Metropolitan Police Service.