What can be considered trace evidence?

Trace evidence refers to small, often microscopic materials that can be transferred from one object or person to another during a crime. This type of evidence is crucial in forensic investigations as it can help connect a suspect to a crime scene or a victim. In this context, footprints and hair strands are classic examples of trace evidence because they can be left at a crime scene and can provide significant clues about the involved individuals. Analyzing these materials can yield information about the suspect's presence at a location or link them to other physical evidence.

In contrast, charges against a suspect, testimonies from witnesses, and police reports are forms of evidence or documentation that may support a case but do not fall under the category of trace evidence. They serve different purposes in the investigative process, focusing on legal aspects and eyewitness accounts rather than the physical remnants left at a crime scene.