Which of the following is an example of trace evidence?

Trace evidence refers to small amounts of materials that can transfer from one location or object to another during a crime, allowing investigators to connect suspects, victims, and crime scenes. Fibers from clothing fit this definition perfectly, as they are often minute and can be left behind at a scene or on a victim, serving as key evidence linking individuals to a criminal act or location. The analysis of these fibers can provide forensic information about the clothing type and potentially its origin, helping in building a case.

Witness statements and police reports, while critical pieces of evidence in a police investigation, do not fall under the category of trace evidence. These are forms of testimonial and documentary evidence, respectively. Security camera footage serves as a visual record of events, which can be crucial, but it does not pertain to trace evidence as defined in forensic science. Thus, fibers from clothing are a clear example of trace evidence due to their nature and significance in linking elements of a case.