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Chris M.
Chris M., M.S.W. Social Work
Category: Homework
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Experience:  Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)
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1. documents, fibers, hair, powder residue and serial numbers

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1. documents, fibers, hair, powder residue and serial numbers all represent
a. class characteristics
b. individual characteristics
c.applications of the product rule
d. common types of physical evidence
2. determining the chemical composition of a bag of white powder confiscated in an arrest represents
a. comparison
b. identification
c. reconstruction
d. standardization
3. before testifying to the identity of a substance a forensic scientist must establish that the analysis used
a. is based on one definitive test
b. eliminates all other substances
c. encompasses all possible pitfalls
d. results in proof beyond a doubt
4. forensic scientists can easily differentiate most soils by a
a. density-gradient tube technique
b. side by side visual comparison
c. immersion method
d. GRIM 2 test
5. one should not rulke out the evidential values of soil even if the site of the crime has not been determined because
a. the sample may contain unique tire or foot prints
b. technology may soon be developed that can pin point soil origins
c.a density gradient tube may be able to ascertain the crimes location
d. an expert geologist with the aid of geological map may be able to locate the general vicinity of the crime
6. the ultimate forensic value of soil evidence depends upon its
a. organic composition
b. manufactured components
c. variation of the crime scene
d. accidental or deliberate collection
7. all of the following should be followed when collecting soil samples for a criminal investigation except
a. samples should be collected at various intervals within a 100-yard radius of the crime scene
b. soil found on a suspects shoe or clothes should be removed righ away
c. specimens should be removed immediately
d. specimens should be collected at all possible alibi locations

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