Collecting DNA Evidence at Property Crimes
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Special Situations

Home > 3. Evidence Collection > Special Situations

Procedures for collecting wet stains on absorbent substances are as follows:

  • Scoop a thin layer of soil (or sand).
  • Allow to thoroughly air-dry.
  • Package in bindle paper.
Wet evidence in sand

Wet evidence in sand

Image courtesy of Kansas Bureau of Investigation

For Liquid Containers:
  • Empty liquid containers by poking a hole in the bottom to avoid liquid contact with the mouth area.
  • Request test for both DNA and latent fingerprints.
  • Mark aluminum cans for “Room Temperature Storage," as cold or frozen storage causes condensation on metal, which may dilute biological evidence.

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