Police dog on duty during Spring Festival travel rush

Judy, a police dog, works with its handler Zeng Yong for security check at the waiting room in South Square of Chongqing North Railway Station in southwest China's Chongqing, Jan. 30, 2019. Ten-year-old Judy is an experienced sniffer dog on possible explosive devices. It will retire from the frontline work after this Spring Festival travel rush. (Xinhua/Tang Yi)