What type of evidence includes small but measurable amounts of physical or biological material found at a crime scene?

Trace evidence refers to the small but measurable amounts of physical or biological material that can be found at a crime scene. This type of evidence can include items such as hair, fibers, soil, and plant material. The significance of trace evidence lies in its potential to link a suspect to a crime scene or victim, as it can be transferred during the commission of a crime and thus serve as a crucial element of forensic investigation.

Forensic experts can analyze trace evidence to provide insights into the circumstances of a crime or the interactions between individuals and their environment. The ability to detect and analyze these minute traces can be pivotal in building a case, as even small quantities can provide important information about the presence or activity of individuals involved in the incident.