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Forensics: Fiber Analysis

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PRESENTATION OUTLINE

FORENSICS

Fiber Analysis
Photo by wcn247

BACKGROUND

  • Fibers are everywhere
  • Manmade vs. natural
  • Forensics: determining the origin to help solve the crime
Photo by Helkramu

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FIBER EXAMINATION IN FORENSIC SCIENCE

  • Fibers can provide crucial evidence
  • Classified as trace evidence
  • 1:1 Serial Taping

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FIBER EXAMINATION IN FORENSIC SCIENCE

  • Foreign fibers are recovered and taken to the lab for examination
  • Placed under a spectrometer

CHEMISTRY IN FIBER ANALYSIS

  • Chemicals are used for the following:
  • Analytical reagents
  • Fiber dyeing/dye extraction
  • Fluorescent brighteners
  • Acrylic fiber weathering
  • Capillary electrophoresis
  • LC/MS
  • UPLC/UV-visible analysis

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