How are drug sniffer dogs trained to detect drugs? Xinhua's Tian Zhongquan takes you to a police dog training base in Xiangyang, China's Hubei to find it out.
Produced by Xinhua Global Service
How are drug sniffer dogs trained to detect drugs? Xinhua's Tian Zhongquan takes you to a police dog training base in Xiangyang, China's Hubei to find it out.
Produced by Xinhua Global Service
