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Principles of Forensic DNA for Officers of the Court

Single Source

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DNA from one contributor is commonly referred to as a single source sample.

Single source profile could be derived from:

  • A reference sample (victim or suspect).
  • An elimination sample (first responders, EMT personnel, consensual sex partners, or anyone who might have had authorized access to the crime scene).
  • A crime scene sample (bloodstain, chewed gum, cigarette butt).

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