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What Every Law Enforcement Officer Should Know About DNA Evidence

First Responding Officers

Tips to Protect Crime Scene Evidence

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These tips will not only help protect crime scene evidence, they may also protect you from bio-hazards.

  • Wear double gloves and change the top pair often.
  • Use disposable instruments or clean reusable instruments thoroughly before and after each sample is taken to prevent contamination.
  • Air-dry wet evidence thoroughly before packaging to prevent mold from forming.
  • To prevent degradation, place evidence in new paper bags. DO NOT use plastic bags.
  • Seal packages with evidence tape. Avoid using staples in evidence collection because there is a risk of contamination if a person is cut on a staple while unpacking evidence.

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