A tender moment takes place between a police dog trainer and his police dog partner, at the border management detachment in Baishan city, in Northeast China's Jilin province. [Photo provided to chinadaily.com.cn]

An English Spring Spaniel – a breed of gun dog, traditionally used for flushing out and retrieving game – eagerly goes on the hunt for drugs and explosives during training in Baishan city. [Photo provided to chinadaily.com.cn]

A police dog leaps up to catch a ball, during the training session. [Photo provided to chinadaily.com.cn]