KEEP SAFE FOR PUBLIC For the trucuIent and quick running ,policedogs have aIso pIayed an important roIe on the places where there are numbers of criminaI cases. In largescale sports 、activities、 assemblies、 marches and the sudden incidents,policedog could keep the there safety. In some of the confidential governmental departments and the most important national defense scientific research units, the poIicedog can also be widely used for their security.