The Metropolitan Police deployed Live Facial Recognition in Lewisham and Catford on Tuesday 26 March.
The deployment led to five arrests including two for rape, one for breaching a Sexual Harm Prevention Order, one for breach of home detention curfew and one for drugs offences.
According to the Met: "LFR is a precision technology that allows images of a person passing the deployment to be compared against a bespoke watchlist of people who the police wish to speak to. When a match is made an alert is generated. An officer will review the match and decide if they wish to speak to the individual."