A police dog is trained at a training base in Shenzhen, south China's Guangdong Province, April 6, 2017. (Xinhua/Liao Jian)
A police dog is trained at a training base in Shenzhen, south China's Guangdong Province, April 6, 2017. (Xinhua/Liao Jian)
A police dog takes rest with its trainer during a break at a training base in Shenzhen, south China's Guangdong Province, April 6, 2017. (Xinhua/Liao Jian)
A police dog is trained at a training base in Shenzhen, south China's Guangdong Province, April 6, 2017. (Xinhua/Liao Jian)
A police dog is trained at a training base in Shenzhen, south China's Guangdong Province, April 6, 2017. (Xinhua/Liao Jian)
