250 Word Forensic Science Discussion – Description
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:
Chapter 8: Pattern Evidence 1: General Patterns and Fingerprints (Attached Below)
Chapter 9: Pattern Evidence 2: Firearms, Tool Marks and Document Analysis (Attached Below)
Source for chapters above: Gaensslen, R.E., & Larsen, K. (2019). Introductory forensic science (2nd ed.).
From the free, downloadable resource at the web page Crime Scene Investigation GuideLinks to an external site.:
Section D – Completing and Recording the Crime Scene Investigation
Section E – Crime Scene Equipment
The articles:
An Automated Approach to the Classification of Impact Spatter and Cast-Off Bloodstain PatternsLinks to an external site.
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.:
Section 10. Automated Fingerprint Identification Systems
Section 11. Homeland Security and Forensic Science
From the video Bodies, Blood, and Ballistics: Forensics School, Part OneLinks to an external site. :
Segment 2. Forensics: Blood Spatter 02:35
Segment 5. Blood Spatter and Trajectories 04:35
From the video Hands-On Police Work: Forensics School, Part TwoLinks to an external site. :
Segment 3. Crime Scene Photography 02:27
Segment 6. How to Capture and Record Fingerprints 03:10
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.
Discussion:
Identify the methods used in the identification of evidence (e.g., visual, black light, police dog, chemicals, electronics, etc.)
Describe at least three different methods involved in the identification of evidence.
Explain why these identification methods are appropriate for certain evidence but inappropriate for other types.
Explain how the identification methodology might affect laboratory testing.
Explain the requirements for the identification methodology related to the admissibility of evidence at trial.
The 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.?
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