Fiber

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Fiber Examination
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What can be learned from fibers?

• Source- natural or synthetic, clothing,
  carpeting, or other source
• More testing can reveal dye formulas and lead to
  the manufacturer.

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Shirt Fabric
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Knit Shirt
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Carpet Fibers
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The tube used to create carpet and synthetic
fibers give them their shape.
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A highly magnified view of fabric fibers.
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Examples of Trace Evidence from Carpets

• Dirt
• Hairs
• Plant debris
• Human or animal tissue
• Metal shavings
• Glass

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Collecting The Trace Evidence

• A hand held vacuum with a sterile filter is used
  to carefully collect any tiny evidence from
  carpeted areas.

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Analysis of Trace Evidence

• Investigators closely examine any materials
  collected using a stereomicroscope.

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THE END