The footage then shows a second man arguing with Theo's handler PC Gareth Greaves and shouting at the suspect on the floor to "bite the dog's ear off".
Mobile phone footage filmed by a horrified bystander shows the man sink his teeth into the six-year-old police dog after it captures him in the middle of the road. Photo / Bullshire Strikes Back
Back up officers arrived soon after and the two men were detained.
Greaves said the tussle lasted around seven minutes - and the clip doesn't show the man kicking both Theo and himself to the floor.