“Batian” and “tietou” are the two police dogs in the police dog base of Changsha County Public Security Bureau. They are also the two oldest members: “batian” is over 10 years old and “tietou” is nearly 10 years old. They are old enough to retire. However, police dogs are also “old steeds in charge”: Although batian’s physical strength is not as good as his young self, he has a good command of the unique skill of “search and explosion”. During the simulated arrest of the “suspect”, the “iron ...