A detonator, frequently a blasting cap, is a device used to trigger an explosive device. Detonators can be chemically, mechanically, or electrically initiated, the last two being the most common.

Are blasting caps illegal?

No person shall store or keep blasting caps, detonating or fulminating caps, or detonators in a magazine in which any other type of explosive is stored or kept.

What was the blasting cap used for?

Blasting caps are used to detonate an explosive charge. Blasting caps contain a small explosive charge that in turn sets off a larger attached explosive (such as dynamite).