When officers get violent with who they think is a protestor, 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.

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