ABSTRACT
Fire scenes are some of the most challenging scenes a crime scene technician may face. It is important for technicians to understand not only the concept of ™re but also the dangers and trials that may be associated with this type of scene. An easy way of looking at the conditions necessary to start a ™re is by viewing a ™re tetrahedron. A ™re tetrahedron is a representation of the elements that must be present for a ™re to start. The components of a ™re tetrahedron are a source of heat or energy such as a match, a fuel, and oxygen. A chain
reaction to the point of ignition. This chemical reaction can happen slowly or quickly, depending on the type of fuel used and the ignition temperature associated with it.
