Trainer Yang Naiwen and police dog Tiehu check passengers' luggage at the Hefei Railway Station in Hefei, capital of east China's Anhui Province, Jan. 24, 2017. Many police dogs are on duty during China's Spring Festival travel rush between Jan. 13 and Feb. 21. This is the 7th time for Tiehu, an 8-year-old sniffer dog, to serve the travel rush around the Spring Festival, which falls on Jan. 28 this year. (Xinhua/Guo Chen)
