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WorksheetsTrace Evidence Review
Total questions: 15
Worksheet time: 8mins
Who coined the phrase "Every Contact Leaves a Trace"?
Walter McCrone
Edmond Locard
Calvin Goddard
Francis Galton
What characteristic would be LEAST useful when examining a fiber?
dye content
length
direction and number of twists
diameter
If a root is found on a hair, it may have DNA in it. What type of characteristics will this have?
class
group
personal
individual
What is the main ingredient in glass?
sand
boron oxide
amorphous solids
crystalline solids
Most accurate method for determining what glass fragments came from.
fracture matching
refractive index
Becke Line
flotation method
Which of the following is NOT a natural fiber?
asbestos
cotton
rayon
wool
The most important characteristic of fiber evidence is
color
length
diameter
size
Which fiber is most likely to smell like burning hair?
rayon
polyester
spandex
wool
What type of fracture is shown by the arrow?
radial
concentric
circular
linear
Which letter shows the medulla?
A
B
C
None show the medulla
What feature is indicated by the arrow?
refractive index
float line
Becke line
fracture line
What type of medulla is shown?
absent
continuous
uniserial
fragmented
The cuticle shown is imbricate and is common in humans.
True
False
The components that make up the polymers in fibers are called
threads
strings
monomers
calibers
What type of chromatography is used to analyze paint evidence?
thin layer chromatrography
pyrolysis gas chromatography
GCMS
paper chromatography
