[BFW]

Use money pack dye paint balls to mark them, use the dye to find them all and bind them in a dark federal pound you in the as... prison for 15 to 20 years.

Not kidding, not Kidding at all, REALLY, I AM NOT KIDDING!

[GenXPolymath]

Even better is use water cannons and do what the Chinese do mix in UV dye in the water tank it’s invisible until you shine blacklight on it then they glow bright pink florescent you can’t wash it off of skin you have to grow new skin it glows for months after. Spray the crowd arrest who you can and then use blacklights to drag net the area’s and next riot too anyone who glows is arrested on sight.