Dog × Police: The K-9 Force(2011)

Yusaku Hayakawa dreams of becoming a detective, but works as a trainer for police dogs. When Yusaku gets an albino shepherd named Shiro, he forms a special bond with him. Everyone says that Shiro does not have the abilities to become a police dog, but Yusaku believes in him and trains him. When a terrorist act occurs, Shiro gets the chance to show what he has learned.