Probably a lot larger today than before the "troubles" started.
Here's a suggested policy for France. Announce that ANYONE out in the open during a riot who has their face obscured with a balaclava or headscarf WILL be targeted by snipers and shot, and that the snipers will be accompanied by photographers with telephoto lenses who will identify anyone whose face is NOT so obscured, and those WILL be hunted out and prosecuted.
AND THEN DO IT!!!!
But I'm sure that the pusillanimous French can't muster the intestinal fortitude to take the necessary action.
Good suggestion. Sensible. Non-French. Won't happen.