I KNOW it can be done, I'm just not sure of the process or how effective it would be. Imagine a police attack dog that ignores commands.
Isn't it pretty common for police dog handlers to have wrestle the dog off of a suspect? I saw a video on Youtube of a training session where the dog grabbed one of the police when it was separated from the target it had brought down. I think the best they aim for is to train the dog to not inflict serious injuries.
Yes, such things happen during training, but I'm not familiar with the scope. I'm sure that, in the field, it would mostly depend on the suspect being detained, though. Anyone who tries to fight WILL lose.
I know that training exercises are an ongoing thing throughout the entirety of the dog's service career and that obedience and response to a trainer are the main things that cause a dog to succeed or fail. I have not done any research in the area of police dog mishaps, myself, but from the police officers I knew when we had our gunclub (many years ago), several of whom were members of Enforcement K9 teams, I would expect that it is very uncommon to have those kinds of problems with a dog trained to detain suspects. Of course, the guys in charge of the attack dogs were always getting shit from the guys who trained the rescue dogs.
Injury to the main handler of a dog would
cause a problem, though. I know that the dog and handler are a team and anyone else will have problems trying to manage another officer's dog, even another experienced trainer who has spent time with the dog.
Obviously, any questionable incident involving a police action is always blown out of proportion, but I wouldn't want it any other way to be honest. The police must be perfect AND subject to review. I "insist" and so do most other people.
A couple of YTvids, viewed by millions of people around the world make the problems seem more common than they really are.