1. CRIME SCENE: Any physical location in which a crime has occurred or is suspected of having occurred. PRIMARY CRIME SCENE: The original location of a crime or accident. SECONDARY CRIME SCENE: An alternate location where additional evidence may be found.

2. Scene Recognition/Assessment
Interview 1st responder to gather preliminary info
Overview the scene
Develop Plan (search pattern, who is responsible for what, what equipment is needed, etc.)

3. Overview the scene Lead investigator -determine boundaries
-identify entry/exit points
-obvious physical evidence
- Fragile evidence or evidence that must be collected quickly

4. Search Patterns
Spiral
Grid
Strip/Line search
Quadrant/Zone search

5. Recording/Documentation
Note taking (continuous throughout)
Video
Photographs
sketches

6. sketch is drawn at the crime scene.
Rough Sketch
Rough Sketch —A draft representation of all essential information and measurements at a crime scene.
sketch is drawn at the crime scene.
recovered items of physical evidence with key
important features of the crime scene
Date/time/location of crime scene
Investigator(s)

7. Finished Sketch
Finished Sketch —A precise rendering of the crime scene
usually drawn to scale
Unlike the rough sketch, the finished sketch is drawn with care and concern for aesthetic appearance usually with computer program
Must contain info from rough sketch

8. Evidence Collecting/Recovery
Physical evidence (collect whole items and keep intact as much as possible)
Objects which may contain trace evidence
Medical examiner/coroner responsible for deceased victims
Collect control samples/substrate control

9. Preserving Evidence Evidence must be individually packaged
Proper packaging so that evidence is not lost/damaged
Maintaining chain of custody is responsibility of anyone who handles evidence

10. Why OJ Won Summarize incriminating evidence against OJ Simpson.
Summarize mistakes made by the lead investigators.
Summarize crime scene security, collection, preservation mistakes.