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WorksheetsFiber analysis Quiz
Total questions: 16
Worksheet time: 9mins
Which of the following observations are used to help identify a specific fiber?
smell of the burned fiber
on contact with the flame, does the fiber coil or melt?
color and structure of the residue left after the riber burns
all of the above
Natural fibers can be harvested from
plants and animals
only from plants
only from animals
plants, animals, and minerals
Fibers are an excellent source of trace evidence because
They are easily transferred from victim to suspect.
They are often overlooked by a suspect.
They can be easily collected and stored.
All of the above.
What is Loccard's Exchange Principle?
Perpetrators always leave evidence behind.
Every contact leaves a trace.
All touches leave evidence.
Long, violent confrontations leave evidence.
Fiber does NOT fall into what type of evidence?
Individual
Class
Trace
Circumstantial
A fiber is collected at a crime scene. When viewed under a compound microscope, what two traits would indicate that the fiber was a human hair and not a piece of fiber obtained from an article of clothing? (Choose 2)
the presence of a cuticle
a medullary index of 0.33 or less
a wide diameter
its ability to dissolve in water
a fiber is...
A tool to make dishes clean
A thread like piece of material is the smallest unit of a woven fabric
Small amounts of hair, skin, fabric, or any other material which may link a suspect to a crime scene.
Which of the following is an example of animal fibers?
cotton
silk
linen
fur
coir (coconut)
