I tend to have a rule that if it is powerful enough to kill me I just try and stay away from it. I'm at face level for biting and I can't run away or really fight back. I've had to many eye opening experiences with dogs in public that wanted to destroy me. A miniature poodle I can laugh at, a Rottweiler or pitbull I do not.
so please do not assume you are safe around police dogs because in my experience, most of them are not safe.
This is good to know, although I wouldn't get near them intentionally anyway. The one that rushed me in the car was pretty dang terrifying. And I didn't do anything but approach the window so it was probably just protecting it's owner. But my face would have been pretty messed up without the glass and bars between us. I instinctively backed up a good 3 feet and he told the dog something in German and then i could approach the car again and it was fine. It amazes me how people can control a dog like that. I would be so afraid just holding the leash that it would turn on me.
I don't really get the draw to dogs with actual attack training as in biting people unless it is going to actually be chasing criminals or in the military.
I'll just stick with dopey Labs and Goldens or maybe a collie.