Civil liberties groups say Facewatch system in stores such as Sainsbury’s and B&M is ‘dangerous escalation’ Facial recognition technology in shops will soon alert police in real time to the presence of serious offenders, with civil liberties groups warning of a “dangerous escalation” towards surveillance and criminalisation in the retail sector. Facewatch, a facial recognition system used by more than 100 businesses including Sainsbury’s, B&M and Spar to monitor thieves, said it was launching a