I also don't understand it. I can only imagine that cops have internalized this sort of action as an ordinary expectation for them. I don't know if that is caus

I also don't understand it. I can only imagine that cops have internalized this sort of action as an ordinary expectation for them. I don't know if that is caused by their own training and culture - but I wouldn't be surprised if media plays a role. How often does a cop dramatically chase down a criminal in a TV show? All the time. And they are always considered right to do so in those stories.