Whole cities in which the algorithms are working say they have seen a decrease in crime. According to Yitu, which says it gets its figures directly from the local authorities, since the system has been implemented, pickpocketing on Xiamen's city buses has fallen by 30 per cent; 500 criminal cases have been resolved by AI in Suzhou since June 2015; and police arrested nine suspects identified by algorithms during the 2016 G20 summit in Hangzhou. Dragonfly Eye has even identified the skull of a victim five years after his murder, in Zhejiang province.
The company's CEO says it's impossible for police to patrol large cities like Shanghai (population: 24,000,000) without using technology.
And one Chinese bank is already testing facial-recognition algorithms hoping to develop ATMs that let customers withdraw money just by showing their faces.