Police in Central China's Henan Province used a new type of smart glasses to arrest wrongdoers in the province's railway station.
Police at the Zhengzhou East Railway Station arrested seven people suspected of being involved in kidnapping and hit-and-run cases, China News Service reported.
Twenty-six others who were using fake IDs were also arrested.
"The facial information captured by the glasses will be sent back to a database for comparison with the information of suspects on the wanted list," Zhang Xiaolei, an employee at the publicity office of Henan's Department of Public Security, told the Global Times on Tuesday.
Zhang said the new technology only requires one facial image for a similarity comparison in the database. Previously multiple facial pictures from different angles were necessary to achieve the same result, he added.
Zhang also said that the main targets of the similarity comparison are wanted people whose information is stored in the database.
Police have been using the smart glasses at the four entrances to the Zhengzhou East Railway Station in Henan since the Spring Festival travel rush began on Thursday.
The train station sees around 60,000 passengers a day and is expected to peak at 90,000 people per day during the rush, Zhengzhou-based Dahe Daily reported.
"I took the high-speed train from Zhengzhou East Railway Station on Sunday, and it didn't feel any difference from my previous trip. I didn't notice any police using special devices," Wang Chuanxi, who often runs errands between Beijing and Zhengzhou, told the Global Times on Tuesday.
It's not the first time police use smart equipment in China.
During the National Day holidays in October 2017, police on a highway in Lanzhou, Northwest China's Gansu Province were seen wearing a special type of smart glasses called X-Mars, which were used to help police record the law enforcement process, local newspaper Lanzhou Morning Post reported.
Police in East China's Anhui Province have also ramped up efforts to make use of the voice recognition and analysis system to crack down on crimes such as telecoms fraud, drug deals and kidnappings, the Xinhua News Agency reported in October 2017.
The voice recognition technology could identify a suspect by accent, or provide information on gender, height and weight, according to the report of Xinhua.