Which class of hazardous materials includes explosives that release heat and gas rapidly?

The class of hazardous materials that includes explosives that release heat and gas rapidly is Class 1. This classification encompasses a variety of materials that are inherently unstable and can detonate or explode under certain conditions. Such materials are grouped into subclasses based on the specific type of hazard they present, such as blasting agents and safety fuse materials. The defining characteristic of Class 1 explosives is their ability to produce a sudden release of energy, which can result in a violent explosion, making it crucial for law enforcement and emergency responders to identify and handle them appropriately to ensure safety during operations involving these materials. Understanding this classification is vital for effective hazard assessment and response strategies in law enforcement scenarios.