![Over 1,000 police dogs serve in criminal investigation in Beijing(4/10)](http://www.ecns.cn/hd/2016/11/11/ecb57aa747e54cba8e8e66a62641661c.jpg)
Wang Chao (R), a SWAT team member of Beijing police, trains a police dog on Nov. 5, 2016. The police dog division of Beijing Municipal Public Security Bureau was founded in 1952. Up to 2015, there have been more than 1,000 police dogs serving in criminal investigation, SWAT, public transportation, firefighting and some other departments of Beijing police. (Photo/Xinhua)