Old Lady Slammed Hard by a Policeman

See this shocking video of an old lady slammed by a police. I can't really say that these actions were appropriate but this only shows that nobody is above the law. It's just so sad to see this kind of happening to this poor old lady. If I were the policeman, I would have to see if the person is a possible threat and do the necessary actions in handling this kind of situation.

How about you? What do you have in mind?