But responsibility for what? If the police officer was in the sincere belief that the old lady was hurt and had no reasons to doubt that this was the case,and kicking down the door was the only viable way to reach her, then kicking down the door would be a responsible and benevolent act which turned out to be misguided, so itwould be unreasonable to blame him for it. But what's being suggested here is that the cops, firstly, had insufficient reason to believe that this guy presented a threat, and, secondly, that the level of force used was excessive even for the threat they percieved, which is a totally different situation; it is both irresponsible and malicious, and therefore that it should be condemned.