Hair and Fiber Analysis - Use your Textbook and Notes
REVIEW SHEET Part 1
1. What are the two main parts of a hair? (Not the three components of the actual hair)
2. What are melanin granules and where are they found?
3. What are the three parts of the hair shaft? Describe their position and function.
4. What is the most common type of regenerated fiber? From where is it derived?
5. What are synthetic polymers? Give a couple of examples.
6. How do the characteristics of nylon compare to polyester.
7. What are two disadvantages to synthetic fibers vs. natural fibers?
8. What are some examples of trace evidence?
9. When two people come in contact with one another what type of transfer is this?
10. What is the protein that makes up a majority of the cortex of the hair?
11. Define primary and secondary transfer. Provide an example.
12. What are the two main functions of hair?
13. What is a follicular tag?
14. Define yarn.
15. Define a polymer and a monomer.
16. What are three methods in which fibers can be collected?
17. Two methods that can analyze fibers without damaging them are?
18. What are the two major types of fibers?
19. Where do natural fibers come from?
20. Where do natural plant fibers come from?
21. One seed fiber is ___________________
22. Fiberglass is a fiber form of ________ and classified as a ________ fiber.
23. How many different types of hair are on the human body?
24. What are the three stages of hair growth and what happens in each?
25. Describe coronal, spinous, and imbricate. Give examples of each.
26. What is the primary function for the epidermis?
27. What is the primary function of the arrector pillius muscle?
28. What is the primary function of the pacinian corpuscle?
29. What is the primary function of the meissner’s corpuscle?
30. What is the primary function of the cuticle?
31. List and draw the different types of medullary patterns.
32. What protein makes up the cuticle of the hair?
33. Describe continuous, interrupted and fragmented medulla.
34. How do the medullary indexes of animals and humans compare?
35. What is the shape of both human and animal medulla?
36. Compare the presence of medulla in humans and animals.
37. What are the two types of pigment granules in the cortex?
38. How does one get black hair?
39. How does one get brown hair?
40. How does one get red hair?
41. How does one get blonde hair?
42. What are the two other factors that affect the natural hair color?
43. What causes grey hair?
44. What are the four things that can be determined from hair samples and how can each of
these be determined?
45. Compare Caucasoid, mongoloid and negroid hair.
46. What are the areas of the body in which hair can originate from?
47. Distinguish between a hair that has been forcibly removed, pulled or naturally shed.
48. Describe the collection process of hairs and how they are stored properly.
49. Be able to label the following from the hair diagram:
a. Epidermis (Function)
b. Dermis
c. Hypodermis
d. Sebaceous Glands (Function)
e. Hair
f. Hair Shaft (Function of each component)
g. Root
h. Bulp
i. Root Sheath
j. Papilla (Function)
k. Arrector Pilli (Function)
l. Pacinian Corpuscle (Function)
m. Meissner’s Corpuscle (Function)
53.
54.
56.
58.
59.
60.
61.
62.
64.
What is the time frame in which fibers should be collected?
What four things can be determined from fibers?
What is the most common form of fiber transfer?
List five examples of animal fibers.
List at least 4 plant fibers.
List the two mineral fibers.
What is the base for synthetic fibers?
What is cellulose?
What synthetic fiber is found in polar fleece?
65. What factors affect transfer of fiber?
Part II. Fingerprinting Questions
Chapter 6
1. What is the difference between patent, plastic, and latent prints?
2. Who are Sir Francis Galton and Sir Edmund Richard Henry?
3. Who is Alphonse Bertillon?
4. What is a ten card?
5. What are the three main fingerprint pattern types? What are the “sub prints”
that fall under these categories? Draw each of them.
6. What are the two main parts of the prints that investigators look at when
identifying prints?
7. How would you recover fingerprints from a surface that is not smooth and is
hard?
8. How many individual ridge characteristics does a full fingerprint have on
average? (use the textbook)
9. How do you take a ridge count from a fingerprint?
10. In what locations on the body to prints occur?
11. What is the basal layer and what is its importance in the formation of
fingerprints?
12. When are fingerprints usually formed?
13. Be able to identify fingerprint patterns, identify ridge patterns, and pick out
the deltas. (I will give you the minutiae or ridge patterns; you will just have to
match them up.)
14. Briefly describe the fuming, dusting, and lifting methods in order to obtain
prints.
15. What are the percentages of occurrence for loops, arches, and whorls?
16. What are some of the common methods in which people have tried to remove
their fingerprints?
17. What is AIFIS?
18. For each of the following list the surface in which it should be used, why the
reaction occurs, and describe what the latent print looks like. (text)
a.
b.
c.
d.
Ninhydrin
Cyanoacrylate Vapor ( Super Glue Fuming)
Silver Nitrate
Iodine Fuming
19. Vocabulary
a. patent
b. latent
c. plastic
d. arch
e. core
f. delta
g. fingerprint
h. loop
i. minutiae
j. ridge pattern
k. ten card
l. whorl