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