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What Every Law Enforcement Officer Should Know About DNA Evidence

Investigators and Evidence Technicians

DNA Evidence

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Because DNA evidence is very easily contaminated:

  • Collect and package evidence separately
  • Appropriately label each package
  • DO NOT fold a stained garment on itself (even if stains are dry). "Sandwich" the garment between two pieces of clean paper, then fold the garment so that the paper is protecting the stained garment
  • Avoid direct contact with the evidence sample

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