There
are several different types or classifications of evidence. Each type of
evidence may have different requirements or methodology for handling them at
the scene for it to be properly identified, documented, processed, and
admissible at trial.
Prior
to beginning work on this discussion, please review the following:
·
From the text:
o
Chapter 8: Pattern
Evidence 1: General Patterns and Fingerprints
o
Chapter 9: Pattern
Evidence 2: Firearms, Tool Marks and Document Analysis
·
From the free,
downloadable resource at the web page Crime Scene Investigation GuideLinks to an external site.:
o
Section D – Completing
and Recording the Crime Scene Investigation
o
Section E – Crime Scene
Equipment
·
The articles:
o
An Automated Approach to the Classification of Impact
Spatter and Cast-Off Bloodstain PatternsLinks to an external site.
o
Chemical Enhancement of Footwear Impressions in Blood
Recovered from Cotton using Alginate CastsLinks to an external site.
·
From the free PDF copy
at the web page Strengthening Forensic Science in the United States: A Path
Forward (2009)Links to an external site.:
o
Section 10. Automated
Fingerprint Identification Systems
o
Section 11. Homeland
Security and Forensic Science
·
From the video Bodies, Blood, and Ballistics: Forensics School, Part OneLinks to an external site. :
o
Segment 2. Forensics:
Blood Spatter 02:35
o
Segment 5. Blood
Spatter and Trajectories 04:35
·
From the video Hands-On Police Work: Forensics School, Part TwoLinks to an external site. :
o
Segment 3. Crime
Scene Photography 02:27
o
Segment 6. How
to Capture and Record Fingerprints 03:10
o
Segment 8. Crime
Scene Documentation 03:18
You
are also strongly encouraged to review the list of recommended resources, as
they may assist you with this discussion forum and the The Difference Between
Preliminary Field and Laboratory Testing assignment.
·
Contrast the collection
and packaging requirements for different types of evidence (e.g., digital,
biological, trace, drugs, explosives, etc.)
·
Describe at least three
different methods involved in the collection and packaging of evidence.
·
Contrast between these
different collection and packaging methods to identify the type of evidence
each is appropriate for.
·
Explain how the
different types of collection and packaging of evidence might affect laboratory
testing.
·
Explain the requirements
for the collection and packaging of evidence related to admissibility at trial.
Each thread must also address health and safety issues at the
scene and in handling evidence (e.g., explosives, drugs, biological, etc.)
The body of your initial post should be at least 250 words in
length. Support your claims with examples from this week’s required material(s)
and/or other scholarly resources and properly cite any references. Remember
science is objective, not a matter of subjective opinions.
