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What Every Law Enforcement Officer Should Know About DNA Evidence

Investigators and Evidence Technicians

Secure a Crime Scene from Contamination

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Images of a crime scene, officer in personal protective equipment, and temporary storage
National Institute of Justice (NIJ) (see reuse policy).

In an effort to secure a crime scene from contamination it is necessary to:

  • Use the established entry and exit points
  • Conduct a walk-through of the scene with the first responding and/or investigating officer
  • Determine the need for personal protective equipment
  • Establish a secure location for the disposal of biohazardous material like used gloves and disposable instruments

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