stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Fiber Forensic Analysis 2023 Flashcards | StudBud
Explore
/
Fiber Forensic Analysis 2023
Fiber Forensic Analysis 2023
45 terms
·
StudBud Administration
·
82 plays
Forensics fiber analysis Chapter 6
Flashcards
45 cards
F
Practice quiz
P
Host live
L
Questions
45
Answers
1
Allows scientist to see chemical structure of fiber using beams of light
Polarized Light Microscopy
Marquis test
Scanning Electron Microscope
UV-Visible Spectophotometry
2
Usually made up of many filaments twisted or bonded together to form a thread or yarn
fiber
textile
yarn
pattern
3
evidence based on suggestion; probability & statistics used to narrow down suspects.
circumstantial evidence
control sample
association
probative value
4
What type of fiber is this?
Plant-Based Natural
Animal-Based Natural
Plant-Based Artificial/Semi-Natural
Synthetic
5
The first important step in microscopic comparison of fibers is the examination of ______.
B: diameter of fiber
B and C
A: length of fiber
C: color of fiber
6
What type of fiber is this?
Animal-Based Natural
Synthetic
Plant-Based Artificial/Semi-Natural
Plant-Based Natural
7
Fibers are transferred from original source to suspect and then to the victim or crime scene
direct transfer
match
secondary transfer
pattern
8
fabrics woven in a distinctive pattern
fiber
pattern
textile
yarn
9
What is the probative value of the sample?
Lowest
Low
High
Neither high nor low
10
Fiber evidence should always be collected and preserved by:
using clean forceps
packaging in a paper bindle
placing clothing in individual bags
all of these
11
What is the probative value of this sample from the Michael Andrade case?
Low
Neither high nor low
High
Lowest
12
What is the probative value of the sample?
Low
High
Neither hig nor low
Lowest
13
Within 24 hours, an estimated 95% of all fibers may have fallen from a victim or been lost from a crime scene
True
False
14
the science of collecting, analyzing, presenting, and interpreting data
analysis
microscopy
probability
statistics
15
sample collected as evidence
known sample
class evidence
individual evidence
questioned sample
16
Allows scientist to observe fiber at specific wavelengths.
UV-Visible Spectophotometry
Marquis test
Polarized Light Microscopy
Scanning Electron Microscope
17
What is the probative value of this sample from the Michael Andrade case?
Low
Lowest
High
Neither high nor low
18
What type of fiber is this?
Synthetic
Plant-Based Natural
Animal-Based Natural
Plant-Based Artificial/Semi-Natural
19
Which fiber(s) melts and forms a hard black bead?
wool
silk
cotton
polyester
20
What type of fiber is this?
Acetate
Cotton
Wool
Polyester
21
What type of fiber is this?
Plant-Based Natural
Synthetic
Plant-Based Artificial/Semi-Natural
Animal-Based Natural
22
What is the most common natural plant fiber found at crime scenes?
cotton
bamboo
wool
silk
23
The fibers below are
all
classified as...
Synthetic
Natural
Nylon
Polyester
24
What kind of fiber is derived solely from animal or plant sources?
polyester
synthetic
natural
nylon
25
What type of fiber is this?
Plant-Based Natural
Animal-Based Natural
Plant-Based Artificial/Semi-Natural
Synthetic
26
Fibers transferred from victim to suspect or suspect to victim
match
secondary transfer
pattern
direct transfer
27
What type of fiber is this?
Plant-Based Natural
Synthetic
Animal-Based Natural
Plant-Based Artificial/Semi-Natural
28
What is the probative value of the sample?
Neither high nor low
Lowest
Low
High
29
the use of a microscope
probability
microscopy
statistics
analysis
30
What type of fiber is this?
Plant-Based Artificial/Semi-Natural
Animal-Based Natural
Plant-Based Natural
Synthetic
31
sample collected from a proven source, such as victim or suspect
known sample
individual evidence
questioned sample
class evidence
32
What type of fiber is this?
Nylon
Cotton
Acetate
Wool
33
the ability of evidence to prove something that is relevant to the crime.
circumstantial evidence
association
probative value
control sample
34
What type of fiber is this?
Nylon
Cotton
Silk
Linen
35
What type of fiber is this?
cotton
jute
wool
linen
36
a number that reflects the chance or likelihood that a particular event will occur
analysis
microscopy
probability
statistics
37
Is the sample a bast fiber?
No
Yes
38
can be associated only with a group of items that share properties or characteristics.
individual evidence
known sample
class evidence
questioned sample
39
Which fiber(s) self-extinguishes?
silk
cotton
polyester
wool
40
In cords, a group of fibers which is twisted around each other
crown
twist
filament
ply
41
What type of fiber is this?
Wool
Silk
Jute
Cotton
42
Is the sample a bast fiber?
No
Yes
43
What type of fiber is this?
Polyester
Cotton
Wool
Acetate
44
Which fiber(s) smells like burning paper/grass and leaves soft, gray ash?
silk
wool
cotton
polyester
45
What type of fiber is this?
Plant-Based Artificial/Semi-Natural
Animal-Based Natural
Synthetic
Plant-Based Natural
