 The devices that we shot off today, they go very high and they can drop hot, smoldering ashes. While standing in front of a colorful table full of illegal fireworks, D.C. Fire Marshal Mitchell Cannery. Anything that shoots, moves, explodes is an illegal firework. But you can buy legal fireworks at the stands you see around the district. Even legal fireworks in the district cannot be brought to other jurisdictions to use. Cheyenne Corrent, WTOP News.