Unbelievable you take the owner's side to this.
I'd of been scared of the dog myself in that situation.
Knowing the breeds capability would of added to the situation.
Extremely sad situation and the owner should be charged for endanger the dog as well.
He just left the dog in the car to die from heat or no water or whatever.
I feel extremely mad and almost hostile towards the dog owner over this.
That dog was unfortunate enough to have such a horrible owner to not consider him at all.
I'd never treat my animals like that.

The video in court will show a dog with potential aggression and the police man will likely not get punished for it.
Dog laws in my state are very clear about restraint.
Dog was not restrained properly and that falls on the owner with huge fines and possible jail time.