Let's take a look at a special test in north China's Inner Mongolia Autonomous Region to select qualified police dogs. About 150 canines took part in the challenging yet exciting games. Besides running through hurdles and tunnels, the main goal of the test is to search for explosives. Dogs are expected to accurately sniff out a box with explosives as soon as possible while choosing from 17 identical boxes. The little soldiers will be assigned with different tasks, including rescue missions. After selection and training, they will join the police force.