An explosives worker is a highly trained professional who works with volatile substances such as industrial chemicals, weapons and explosive demolition materials. As the name implies, these individuals deal frequently with very dangerous substances and must have exceptional powers of concentration to keep themselves and those around them safe. The mining industry employs explosives workers to set dynamite charges and expose new mineral veins; law enforcement and military applications for an explosives worker may include defusing bombs and rigging land mines. Other explosives workers work in construction and demolition, where they must choose which explosives to use, and where to place them, so that a condemned building collapses safely and quickly.