A wooden floor in a building cannot catch fire without some liquid to start combustion.

Fire investigators categorize some fires as:

The floor of a hardware store is charred in a shape like a puddle on a sidewalk. A fire investigator immediately suspects arson because:

The scientific method includes:

The point at which a judge determines whether or not there is enough evidence to take a case to trial is called the:

A detective collects carpet fibers from a suspect’s home. The fibers are a:

Among the common characteristics of an arsonist is a person who:

The retention factor value is an older form of paper chromatography.

Before an investigator collects additional samples of a reddish liquid at a crime scene, he or she will check the substance using a:

A fire in a restaurant has more than one point of origin. This probably indicates that the fire was: