If they arrest anyone SURROUND THEM, with over 50 people. They will not be able to move and chant together Let Them Go. Don't let them move, not let them communicate or receive order - Drown Them In Sound. Make them give up.
Getting deeper into the mess but they are just flying across the land and dropping bombs also with rockets all of which are busting the rolling mess with more derby swirling into the void created.