Homicide Chapter 7 Ol

864 views

Published on

Published in: Business, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
864
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
9
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • Homicide Chapter 7 Ol

    1. 1. South Puget Sound Community College
    2. 2. CRIME SCENE SKETCH <ul><li>THE SKETCH: </li></ul><ul><li>- simple line drawing </li></ul><ul><li>-simple/effective </li></ul><ul><li>-measurements </li></ul><ul><li>-identify significant items </li></ul><ul><li>Used to: </li></ul><ul><li>Refresh investigator’s memory </li></ul><ul><li>Refresh memory of witnesses </li></ul><ul><li>Refresh memory of cooperative suspect </li></ul><ul><li>Develop clear understanding of events </li></ul><ul><li>Explain to jury/witness specifics of a case </li></ul>
    3. 3. CRIME SCENE SKETCH <ul><li>DEPICTS: </li></ul><ul><li>-position of doors/windows/stairs </li></ul><ul><li>-weapons/blood stains/evidence </li></ul><ul><li>ROUGH SKETCH: </li></ul><ul><li>-prepared at the scene </li></ul><ul><li>-measurements and distances </li></ul><ul><li>-legend explaining </li></ul><ul><li>Numbers/symbols </li></ul><ul><li>ID of sketcher </li></ul><ul><li>Person taking measurements </li></ul><ul><li>Reference to compass North </li></ul><ul><li>What evidence is located where </li></ul><ul><li>Used to complete finished sketch at later time </li></ul><ul><li>Still evidence </li></ul>
    4. 4. CRIME SCENE SKETCH <ul><li>PREPARING THE CRIME SCENE SKETCH: </li></ul><ul><li>-Determine scene boundaries </li></ul><ul><li>1. Necessary items: </li></ul><ul><li>-Paper </li></ul><ul><li>-Pencil w/eraser </li></ul><ul><li>-Ruler </li></ul><ul><li>-Measuring device </li></ul><ul><li>2. Measurements: </li></ul><ul><li>-all taken from fixed points </li></ul><ul><li>-exact </li></ul><ul><li>-1 sketches/1 measures </li></ul>
    5. 5. CRIME SCENE SKETCH <ul><li>3. Obtaining measurements: </li></ul><ul><li>-straight line </li></ul><ul><li>-rectangular coordinates </li></ul><ul><li>-rectangular coordinates/perpendicular distance method </li></ul><ul><li>-polar coordinates/triangulation </li></ul><ul><li>-base line </li></ul><ul><li>-two fixed points </li></ul><ul><li>4. Title block </li></ul><ul><li>-name/title of artist </li></ul><ul><li>-date/time of sketch </li></ul>
    6. 6. CRIME SCENE SKETCH <ul><li>-Crime classification </li></ul><ul><li>-ID of victim </li></ul><ul><li>-agency’s case # </li></ul><ul><li>-names of persons assisting in measurements </li></ul><ul><li>-precise address of location </li></ul><ul><li>-reference points used during sketching </li></ul><ul><li>-legend </li></ul><ul><li>-other pertinent information </li></ul><ul><li>Aerial mapping </li></ul>

    ×