Violators in Shenzhen tagged by high-tech

Shenzhen is using facial recognition technology to identify traffic violators and levy fines as it builds toward its goal of being a smart city.

Forty sets of surveillance devices, installed mainly at intersections with high traffic volume, officially lit up on Tuesday.

The electronics police will pay special attention to people in certain industries - couriers, for example - as well as people who have had their driver's licenses revoked, according to the city's traffic police.