This is similar to when a large company has lots of divisios,where in one only nice people work,while in other they are all assholes. But the problem is that despite these differences, they all sit under the same hat.In this case, it's the police and one bad action resonates and makes it even more difficult for the good people to do the job.In recent events,it should have been other policemen going out and screaming "this is not normal,we don't work like that".