During the Warring States Period, China used dogs in combat. At this time, the earliest police dogs appeared. But at that time, it was not called "police dog", but still called "dog" There is a record in Mozi's "Preparing Points": "There are dogs at each point. When dogs bark, there must be someone (referring to the enemy)." This is a saying about the popular acupuncture tactics during the Warring States Period, that is, the enemy often attacked cities from underground through tunnels, and the defenders also dug caves and built bases in their own cities to monitor the movements of the enemy digging tunnels. Mozi said that there were police dogs hiding in underground caves to help the defenders listen to the movement. & lt
It is not too late for China people to really use the word "police dog", about the Tang Dynasty. Tang's "General Code" said: "If the enemy is afraid to ride on the city at night, headlights will be hung in the center of the city every 30 steps inside and outside the city, police dogs will be put on the city, and grease torches will be needed for barking." Obviously, police dogs with headlights are used to spy on the enemy. Put a torch where the police dog barks. The word "police dog" has appeared for more than 1000 years, which is recorded in an ancient book in black and white.
Since then, from the Song Dynasty to the Ming and Qing Dynasties, police dogs have been trained and set up, but only in the army. It is a modern thing for police dogs to enter the police station and undertake new tasks such as reconnaissance, anti-smuggling, drug control and search and rescue. "Police dog" is an ancient word, which originally meant "guard dog", not "police dog". Nowadays, its meaning has expanded with its function, and it is not just a warning task!