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Pneumonic Device
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PPPSCRIPT
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1st P
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Preserve Life (provide medical aid if needed)
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2nd P
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Protect the scene (close off the crime scene)
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3rd P
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Photograph the scene
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S
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Search the scene
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C
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Collect evidence
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R
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Record (write down important info)
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I
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Identify (do a quick scan of the evidence)
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P
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Package the evidence in the appropriate container
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T
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Transfer evidence collected to the crime lab
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To conduct a LEGAL search, officers must have at least 1 of the following:
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Probable cause, consent, or a warrant
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Probable Cause
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A reason to suspect that a person has committed a crime
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Consent
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Permission from the person or property owner
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Search Warrant
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a legal document authorizing a police officer or other official to enter and search premises.
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Do not dismiss any evidence until you figure out whether it is relevant or not
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Crime scenes should be searched methodically (with a plan, not randomly)
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Which should be searched first: outdoor or indoor crime scenes?
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Outdoor (weather may alter evidence and it is harder to protect)
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Inward Spiral pattern
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Starts at the perimeter of the scene and works toward the center. Good to use when there is only 1 CSI at the scene
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Outward Spiral pattern
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Start at the center, work your way out
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Parallel or Line pattern
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All members of the CSI team form a line and walk from one end of the crime scene to the other. Good for large open spaces like a field.
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Grid search pattern
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Is 2 parallel searches offset by 90°. Good if a more thorough search is needed
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Zone or Quadrant
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CSIs divide up into groups and each search their section. Example in a house someone would search the living room, someone else searches the bathroom & bedrooms.
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Rough Crime Scene Sketch
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Quickly done by a CSI member at the scene. The focus is on getting the layout/location/measurements of evidence at the scene down correctly. Artistic design is not important at the moment.
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Final Crime Scene Sketch
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Is a refined version of the rough crime scene sketch, usually done on the computer or on nice paper. Design is more important here, as this will usually be presented in court.
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Reference Points
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Fixed, unmoveable points in the crime scene that help us determine the location of our evidence.
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Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
