Not the first such tests -- there was a trial in Boston in 2013, at a music festival on municipal property (City Hall plaza). https://digboston.com/boston-used-

Not the first such tests -- there was a trial in Boston in 2013, at a music festival on municipal property (City Hall plaza). https://digboston.com/boston-used-face-recognition-before-despite-potential-ban-it-likely-will-again/ https://digboston.com/boston-used-face-recognition-before-de...