Trace Evidence

Topics: Forensic science, Spectroscopy, Forensic evidence Pages: 4 (1468 words) Published: March 3, 2013
Trace Evidence

Trace evidence is an important part of a team in solving crimes in forensic investigations. According to Edmond Locard, there is specific that no matter wherever people interact with their environment or is physically involved in a crime often leaves something at or something away from the scene. Those in this category of evidence include many diverse types of macroscopic or microscopic materials that certain examples are easily visible to our “naked eye”. The subject is broad and diverse due to the number of different types of evidence that are commonly encountered. Therefore, it is very important that any crime scene is carefully examined for clues. Because trace evidence can occur in sizes so small that it can be missed without knowing it transferred or exchanged between two surfaces. Any physical trace evidence that is found may be examined by scientist and may be significant in bringing a perpetrator to justice.

Varieties of trace evidence can be found at the crime scene include, but are not limited to: food stains, sawdust, plastic fragments, pollens, lubricants, condoms, spores, gunshot residue, chemicals, metal fillings, fingernail scrapings, building materials, glass fragments, feathers, paper fibers, animal and human hairs, plant and vegetable fibers, blood and other body fluids, tar or asphalt, vegetable oils and fats, dust, cosmetic, and other airborne particles, textile fibers, soils and mineral grains, and explosive residues.

In the following main forms of trace evidence is that most forensic scientist; center on such as fiber, hair, glass, condom, shoe and tire impressions will be covered and discussed in how they may give help to both investigators and prosecutors. Edmond Locard, one of French scientist of the early pioneers in forensic science that strongly believed that individuals could not enter an area without taking dust particles with them from the scene. “Locard believed that crimes could be solved by inspecting...
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