Crime scene documentation
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Crime Scene Documentation. 1.1 Explaining how to search, sketch, and record data from a crime scene. Equipment Used. Cameras (digital and film) Different types of film Different lenses Flashes Filters Tripod Sketchpad Graph paper Measuring tape Notepad. Crime Scene Documentation:.

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Crime Scene Documentation

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Crime scene documentation

Crime Scene Documentation

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


Equipment used

Equipment Used

  • Cameras (digital and film)

    • Different types of film

    • Different lenses

    • Flashes

    • Filters

    • Tripod

  • Sketchpad

  • Graph paper

  • Measuring tape

  • Notepad


Crime scene documentation1

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.


Note taking at the scene

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”


Photographs

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


Crime scene photographs

Crime Scene Photographs


Overview shots

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 (???)


Mid range photos

Mid-range Photos

  • To show key pieces of evidence in their original context

    • Location in the room

    • Distance from other pieces of evidence


Close ups

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.


Photo log includes

Photo Log Includes:

  • Photograph number

  • Description of the object or scene in the photograph

  • Location of object or scene

  • Time and date of photo


Sketches

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 victim’s body

    • Angle measurements


Video

Video

  • Captures entire scene and surrounding area

  • ****Next: Evidence Collection


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