 While demonstrating how dangerous illegal fireworks are, DC Fire Chief John Donnelly gives this warning ahead of the 4th of July. Fireworks are dangerous. They are terribly dangerous. To prevent this from happening, Fire Marshal Mitchell Canry reminds people to never allow children to use fireworks unattended. Only ignite fireworks outdoors and keep water or fire extinguisher close by. All the fireworks stands that you see around the district are permitted by the fire marshal's office.