Which of the following is NOT considered trace evidence in a sexual offense investigation?

In the context of a sexual offense investigation, trace evidence refers to small or microscopic materials that can be collected and analyzed to link a suspect to a crime or to the victim. This evidence can include substances like hair, fibers, and biological samples.

In this scenario, witness testimonials are not considered trace evidence. While they are crucial for providing context and establishing circumstances surrounding an incident, testimonials rely on personal accounts and perceptions, rather than physical evidence that can be collected and analyzed in a laboratory setting. The other options—DNA from the scene, victim’s clothing, and hair samples—are all forms of trace evidence, as they can provide forensic links between the suspect and the crime scene or victim.

Therefore, the identification of witness testimonials as not fitting the definition of trace evidence is accurate, as it emphasizes the distinction between physical evidence and narrative accounts in criminal investigations.