The Chinese police have used facial recognition technology to locate and seize a man who was among a crowd of more than 60,000 concert goers.
The suspect, who has been identified only as Ao, was attending a concert by Hong Kong pop star Jacky Cheung in Nanchang city last weekend when he was caught.
Identified by the cameras at the concert hall's ticket entrance, Ao was immediately arrested by police after he had sat down with other concert goers.
"The suspect looked completely caught by surprise when we took him away," police officer Li Jin told state news agency Xinhua.
"He didn't think the police would be able to catch him from a crowd of 60,000 so quickly," Li, from Honggutan police station in Nanchang city, added.
Li also told China Daily that there were several cameras at the ticket entrances equipped with facial recognition technology.
On the other hand, Ao had reportedly driven 90km (56 miles) from Zhangshu to Nanchang with his wife just to attend the concert.
News site Kan Kan released footage that appeared to show the suspect speaking while in police custody, saying: "If I knew, I wouldn't have gone [pertaining to the concert]."
The Wonders of Facial Recognition
This is not the first time Chinese police have used facial recognition systems to catch suspects.
In August last year, police in Shandong province arrested 25 suspects using a facial recognition system that was set up at the Qingdao International Beer Festival.
China is a world leader in facial recognition technology and regularly reminds its citizens that such equipment will make it almost impossible to evade the authorities.
The country has been building what it calls "the world's biggest camera surveillance network". While there are an estimated 170 million CCTV cameras already in place, at least 400 million new ones are expected be installed in the next three years and many of the cameras will use artificial intelligence, including facial recognition technology.
