WA police facial recognition trial scanned more than one million faces, leading to 122 arrests
Civil liberties advocates question 0.00065% error rate, say incorrect rate will only be known when those arrested have their day in court
A five-month trial of real-time facial recognition technology in Western Australia scanned more than 1.38 million faces and led to 122 arrests, WA police said, as civil liberties advocates criticised how the force framed its error rate.