Fiber analysis Quiz

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

Which of the following is not a synthetic fiber?

• Rayon
• Polyester
• Acrylic
• All of the above are synthetic.

In a burn test, these fibers will often shrink back away from the flame.

• Synthetic
• Natural

When fibers are transferred directly from victim to suspect or suspect to victim, this is called

• necessary transfer
• direct transfer
• absolute transfer
• secondary transfer

The transfer of evidence such as a fiber from a source to a person, then to another person or object, is called

• primary transfer
• secondary transfer
• tertiary transfer
• direct transfer

Fiber evidence is gathered with 

• vacuums
• tape or lint roller
• forceps
• all choices correct