Police dogs busy patrolling during Spring Festival travel rush

Police officers patrol with police dogs "Hei Lang" (R) and "Hei Tou" at Shijiazhuang Railway Station in Shijiazhuang, capital of north China's Hebei Province, Feb. 25, 2018. Police dogs were busy patrolling in the railway station here during the Spring Festival travel rush. (Xinhua/Mu Yu)