Crime%20Scene%20Documentation

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Crime Scene Documentation

• 1.1 Explaining how to search, sketch, and record
  data from a crime scene.

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Equipment Used

• Cameras (digital and film)
• Different types of film
• Different lenses
• Flashes
• Filters
• Tripod
• Sketchpad
• Graph paper
• Measuring tape
• Notepad

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Crime Scene Documentation

• Occurs during the second walk-through
• Follows same path as first walk-through
• These jobs can be shared if more than one CSI is
  present.

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Note-taking at the Scene

• Uses scientific observation
• Make only factual observations.
• Make no assumptions form no opinions.
• blood spreading outward from underside of
  corpse vs. large, brownish-red fluid spreading
  outward from underside of corpse

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Photographs

• Take pics of everything BEFORE anything is
  touched or moved.
• Even the corpse is not touched until it and the
  surrounding area have been photographed.
• 3 types of photos taken
• Overviews
• Mid-views
• Close-ups

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Crime Scene Photographs
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Overview Shots

• The widest possible views of the entire scene
• Views of ALL rooms with photos from each corner
  and overhead
• Views of the outside of the building, including
  all entrances and exits
• Views of the building in relation to other
  structures
• Photos of any spectators at the scene (???)

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Mid-range Photos

• To show key pieces of evidence in their original
  context
• Location in the room
• Distance from other pieces of evidence

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Close-ups

• Individual pieces of evidence to show details and
  serial numbers
• Second set of evidence pieces with a ruler for
  scale
• Every photo is included in a photo log.

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Photo Log Includes

1. Photograph number
2. Description of the object or scene in the
   photograph
3. Location of object or scene
4. Time and date of photo

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Sketches

• Shows exact locations of evidence and how each
  piece relates to the rest of the scene
• Includes details like
• door heights,
• room size,
• distance from door to windows,
• diameter of hole in wall above victims body
• Angle measurements

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Video

• Captures entire scene and surrounding area
• Next Evidence Collection