Police officers at immigration inspection checkpoint on duty during Spring Festival

Policewoman Sun Wenjing (R) helps an elderly man get cleared at immigration inspection checkpoint of the airport in Qingdao, east China's Shandong Province, Feb. 6, 2019. Police officers at immigration inspection checkpoint of the airport in Qingdao were on duty as usual during the Chinese Lunar New Year. (Xinhua/Xie Hao)