Every contact leaves a trace. No matter how much you try to clean up, something is always left behind. Tiny fragments of hair, fiber, cosmetics, paint, glass, soil or fire debris can help tell the story of what happened.
Criminalist Chris Vance explains how trace evidence may provide a link between the victim, suspect and crime scene.
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To learn more about the Sheriff's Department Regional Crime Laboratory visit sdsheriff.net/crimelab/forensicdisciplines.html.
