Here’s a thought: turn off the TV, grab your phone and a neighbor and take a leisurely stroll around the block or wherever you hear and see the illegal fireworks in the cool evening (take a flashlight for after dark). Either you will catch them in the act or they will see you and stop – at least for a while. Maybe take two turns around the block. Organize your ‘hood into citizen patrols. Call in what you see and take a picture if you can, to help the Sheriff.