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Evidence Preservation






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    Evidence Preservation Evidence Preservation Presentation Transcript

    • Evidence Preservation
    • Evidence Preservation The most important part of evidence collection is protecting the crime scene
    • Evidence
      • Anything that can be used to connect:
        • A victim to a suspect
        • A suspect to a victim
        • A suspect to a crime scene
    • The Fundamental Principle
      • It is impossible to be on a crime scene without:
        • Leaving evidence of yourself on the scene!
        • Taking evidence of the scene with you!
    • Evidence
      • Fingerprints
      • Bite Marks
      • Broken Fingernails
      • Documents
      • Blood/Body fluids
      • Blood Splatters
      • Firearms
      • Tool Marks
      • Fracture matches
      • Hair
      • Fibers
      • Paint
      • Glass
    • Crime Scene
      • Location where any part of criminal act was committed
      • All entry/exit routes from area where crime was committed
    • Evidence Preservation Patient care is FIRST priority of ALL responding agencies
    • Initial Approach
      • Minimum number of people necessary (one)
      • Minimum amount of equipment necessary
      • Minimum amount of contact required
      One person approaches and determines course of action. Rest of team stays back.
    • Evidence Preservation A crime scene is no place for a crowd!
    • Evidence Preservation
      • Don’t disturb scene any more than necessary during assessment
      • Watch where you step
      • Pay attention to floor
      • Avoid kicking anything lying on floor
    • Evidence Preservation
      • Note transient details of scene as you approach patient
        • Lighting (on/off)
        • Drapes (open/closed)
        • TVs, radios (on/off)
        • Furniture position
        • Evidence of forced entry
    • Evidence Preservation
      • Wear gloves
      • If you must move something to get to patient or do your assessment
        • Tell police
        • Note it in your report
      • If you move a DOA, note it in your report and tell police
    • Evidence Preservation
      • If you are there before the police:
        • Safeguard scene
        • Seal off entire area
        • Record names of all people who came into contact with scene
    • Evidence Preservation
      • If you are there before the police:
        • Try to hold all witnesses at scene
        • Limit conversation between them
    • Evidence Preservation
      • If you are there before the police:
        • Record “first” statements by victim
        • Note who victim made statement to
        • Note statements by witnesses
        • Report to police, record in report in quotes
    • Evidence Preservation
      • Do NOT :
        • Smoke
        • Eat
        • Drink
        • Leave wrappers
        • Use the bathroom
    • Evidence Preservation
      • Never cut through bullet hole, stab wound
      • Do NOT shake or turn clothing inside out
      • Bag or otherwise secure clothing so the police can recover it at the hospital
      • If you try an IV and miss, mark the site and note it in your report
      • Be conscious of debris you leave on the scene--needles, bandage packages, etc.
    • Evidence Preservation
      • Avoid handling bullets, bullet fragments
      • Place in plastic container
      • Turn over to police
    • Evidence Preservation
      • Leave firearms in exact position found
      • Assume ALL weapons loaded
      • If firearm must be moved, only one person should handle it
      • Outline weapon before moving it if possible
    • Evidence Preservation
      • Do NOT handle weapon any way except by grips
      • Do NOT attempt to clear or unload weapon
      • NEVER place anything in gun’s barrel or inside trigger guard
    • Evidence Preservation
      • If victim reports scratching assailant, cover victim’s hands with paper bags, tape loosely at wrists
    • Evidence Preservation
      • Wet clothing should be placed in paper (not plastic) bag and turned over to police.
      • Wet clothing should not be allowed to stay in ANY kind of bag for >two hours.
    • Evidence Preservation
      • Avoid tracking blood on shoes
      • Keep bloody clothing from various patients separated
      • Do NOT clean or smudge blood splatters on scene
      • Advise police of blood spilled during venipuncure
    • Evidence Preservation
      • Victims of alleged sexual assault should not wash or use the restroom until examined at hospital
    • Evidence Preservation
      • Do NOT let evidence leave your custody until it passes directly to a peace officer
      • Note in your report that you handled evidence and to whom you passed it
      • Provide your name and unit number to the officer to include in his/her report
    • Evidence Preservation If chain of custody on piece of evidence is broken, it becomes inadmissible in court!