Trace
Trace evidence includes tiny pieces of physical matter that transfer onto a surface when someone commits a crime. Examples of this may include:
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Gunshot residue
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Hair
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Fibers
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Dirt
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Paint
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Pollen
Trace evidence can help investigators thoroughly examine a crime scene and develop connections to suspects. It's typically admissible in court, so legal teams often present it to juries to help them understand certain events that occurred.