There’s something about politicians (and the rich / powerful) that they believe the rules do not apply to them, doubly so if they actually create the rules. So, Barnet Councillor Brian Coleman you are officially ‘tosser of the day’, violence against another person is not acceptable except in self defence.
You decided that attacking another person because they were capturing your image from public land doing something illegal. Though I rather suspect that you strongly believe in the right of the council to deploy CCTV and the police to film everyone attending any form of gathering for later checking.
I wonder if you’ve ever said “If you’ve nothing to hide, you’ve nothing to fear.”
Please do the honourable thing (if you don’t understand the word please buy a dictionary) and resign.