Pair lose High Court challenge against Met use of Live Facial Recognition - as Sir Mark Rowley defends tech's rapid rollout The High Court has thrown out a legal challenge brought by a pair over the Met's use of facial recognition technology in London Two people have lost their High Court challenge against the Metropolitan Police over its use of Live Facial Recognition (LFR) cameras - as Sir Mark Rowley denied the force had moved too quickly with its expansion. Listen to this article Youth worker Shaun Thompson, who was misidentified by the technology, and Silkie Carlo of campaign group Big Brother Watch brought the claim. They had concerns over the arbitrary or discriminatory use of facial recognition technology across London. Met commissioner Sir Mark Rowley warned "clumsy regulations" could "strangle" the progress of facial recognition at birth - as he denied the force had moved too quickly in its expansion of the technology. Sir Mark made the comments after a High Court challenge brought against the Metropolitan Police over its use of facial recognition technology in London was thrown out by judges. The pair's lawyers had argued in a hearing earlier this year that facial recognition is "similar to a DNA profileâ and that installing the technology permanently would make it "impossible" for Londoners to travel without their biometric data being taken and processed. Read more: Sainsburyâs apologises after kicking innocent man out of supermarket in facial recognition mix-up Read more: Home Secretary defends controversial police facial recognition as thousands already arrested Scotland Yard defended the legal challenge, telling the court its live facial recognition policy was lawful. Lord Justice Holgate and Mrs Justice Farbey said in a judgment on Tuesday: âIn the context of promoting law and order in a large metropolis, the policy provides the claimants with