The cameras will be used for five or six hours at a time according to BBC News, but the Met states that this technology will be used on a daily basis from now on.
“As a modern police force, I believe that we have a duty to use new technologies to keep people safe in London,” said the Met’s assistant commissioner Nick Ephgrave said in a press statement. “Every day, our police officers are briefed about suspects they should look out for; [facial recognition] improves the effectiveness of this tactic.”
Previously, facial recognition technology by the law enforcement in the UK, was limited to small trials and public events such as concerts and football matches. The use of the technology was criticized heavily, since the data from the trial indicated that 81% of “matches” suggested by the technology, were false.