an aside observation to this violent gang thug, who was presumably and sadly led astray by his community but now needs to rot in jail;
Fang is a stupid name for a police dog and speaks to systemic aggression in the police dog training academy. A trainer should be proud of his dog's ability to identify and stop agression as soon as possible and also to answer commands instantly.
Calling a dog 'fang', or 'killer' etc does not speak to this mentality.
Dogs are brilliant for security work. The channel tunnel? Put a couple of guards dogs in between the fences; noone will mess with that. But notice a guard dog is different from a police dog. And is different from a war dog. You can call war dogs 'fang'.
Fang should get a medal. His handler should get gently assessed.