When officers get violent at a protest, their own police dog attacks the cop

Police dogs are trained to attack aggressors, so it's a wonder more four-legged officers don't do what this one did: attack the cop. During the Bristol, U.K. protests over the weekend, according to Daily Dot, officers grab and club a person who they might think is a protestor. They then pull the victim, who was later identified as a photographer, over a divider. As the photographer struggles to escape an officer's grip, a police dog bites the officer. Even when another officer tries to hold the dog back, it again tries to attack the officer. Now that's a well trained dog.