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Chris M., M.S.W. Social Work
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5. the difficulty in linking the yellowish green nylon fiber

Resolved Question:

5. the difficulty in linking the yellowish green nylon fiber found on nathaniel carters head with Atlantas seriel killer suspects, Wayne Williams was due to the carpets a. refractive index b. class characteristics c. intensive properties d. individual characteristics d. individual characteristics
6. As the number of different objects connecting a suspect to a crime increases, the:
a. less likely physical evidence is to cross from class to individual
b. greater is the prosecutions burden of proof
c. more chances exist for multiple sources
d. probability of involvement increases
7. all of the following represent forensic skills derived more easily from experience than from textbooks except
a. learning terminology of crime scene safety procedures
b.distinguishing evidential variations from natural variations
c. gaining proficiency in using a microscope and interpreting observations
d. finding as many characteristics as possible to compare one substance with another
8. Physical evidence left behind at a crime scene plays a crucial role in the investigation for all of the following reasons except
a. supporting or contradicting witness accounts
b. confirming the reconstruction of the crime
c. maintaining due process protections
d. generating leads
9. The difference in analyzing the physical properties of a substance verses its chemical properties is that
a.physical properties are always intensive
b. chemical properties provide more definitive clues of identification
c. chemical properties can be determined without reference to any other substance
d. physical properties can be measured without altering the materials composition
10. A physical property most useful in determining the identity of crime scene evidence is the objects _________
a. mass
b. weight
c. density
d. melting point
11. Aside from the physical fit of the edges, the physical properties of glass particals most useful for characterizing and making comparisons are
a. mass and weight
b. color and matchpoint
c. melting point and volume
d. density and refractive index
12. Which physical property forms the basis of comparison when determining the match point during an immersion test?
a refractive index
b. mineral content
c. relative density
d. volume
13. Once investigators establish a common density and match point between crime scene glass fragments and a standard reference sample the next step is to
a. subject the samples to a GRIM 2 analysis
b. write up the probability report linking the suspect to the crime scene
c. correlate the index values to a databank of their frequency of occurrance
d. contact local manufacturers to determine which carry glass in that index range
14. The 3R rule is used to help forensic scientists determine
a. the side on which a window is broken
b. commonly occurring refractive indices
c. ratios of liquid in a density gradient tube
d. which projectile penetrated the window first
Submitted: 2 years ago.
Category: Homework
Expert:  Chris M. replied 2 years ago.
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Chris M., M.S.W. Social Work
Category: Homework
Satisfied Customers: 2531
Experience: Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)
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