Unit 2: Preserving and Recording the Crime Scene     

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Mastery Objectives / Critical Thinking Skills

1. Know and understand steps to secure and preserve a crime scene

2. Know and understand steps to record and measure a crime scene

3. Know and practice 3 methods of measuring crime scenes

1. Rectangular

2. Baseline

3. Triangulation

4. Know what constitutes physical evidence

5. Describe proper search procedures for physical evidence

6. Explain the difference between direct and circumstantial evidence, and individual and class evidence.

7. Describe proper techniques for packaging common types of physical evidence

8. Know the meaning and relevance of a reference sample

Presentation(s)

• Preserving and Recording.pptx 

 Handouts

• 01 - UO - Preserving and Recording the Crime Scene.doc
• 03 - Crime Scene Diagramming.docx
• 05 - Boston Marathon bomber questions.docx
• 04 - Crime Scene Activity.docx  

Links

• http://www.isp.state.il.us/docs/6-420.pdf
• Kent E. Boots: Crime Scene Diagramming 
• Collection and Preservation of Evidence

If you want to learn more . . .

•   If you want a more detailed discussion of evidence processing: http://oag.ca.gov/sites/all/files/agweb/pdfs/cci/reference/evidence_collection.pdf