G20 demonstrations

they are exceptionally well-mannered, compared to every other police force in the world.

It's irrelevant.

I think I have said this before, but when corned about the fact that you beat your wife once a week, it is no excuse to say that the bloke down the road beats his wife 5 times a week.

That other countries have poor policing has no bearing on the question.

but this wasn't an ordinary situation, it was a high-intensity protest.

It was a wake for the death the previous day of Ian Tomlinson.