A trainer holds a newborn puppy at a police dog training base in Hohhot, capital of north China's Inner Mongolia Autonomous Region, April 14, 2015. There are over 130 dogs and 16 trainers at the police dog training base of the Public Security Department of Inner Mongolia. 30 of the dogs at the base can perform tasks like drug searching and explosive safety inspection. Each of the trainer trains dogs for four hours everyday, and other time they feed them, play with them to build up relationships with the dogs. (Xinhua/Shao Kun)