"Sniffer Dog Open Day" activity held in Yinan County, E China's Shandong

A sniffer dog senses drugs hidden in a room during the "Sniffer Dog Open Day" activity held at the Public Security Bureau of Yinan County, east China's Shandong Province, June 24, 2018. The open day activity was held to mark the upcoming International Day Against Drug Abuse and Illicit Trafficking on June 26. (Xinhua/Wang Yanbing)