So, what has gone on before is irrelevant, the lad is no longer posing a threat to life (if he ever was), therefore the copper is bang out of order and absolutely fucked!And that video shows everything thats gone on, I very much doubt it. The copper will be in trouble for striking him on the head but let's not make out its a innocent kid. He must of been doing something before hand, there were bits I read that he was going rou d attacking people
A basic understanding of the use of force would help you, you don’t seem to have a clue.