Fiber Evidence Review

Early collection of fibers in an investigation is critical. Within 24 hours, an estimated __% of fibers may have been lost from a crime scene.

• 85%

• 50%

• 95%

• 25%

When studying fibers, a forensic scientist will ask questions about

• type of fiber

• color of fiber

• number of fibers found

• all of the above

Fiber evidence is gathered with

• tape, vacuums, and fingers

• tape, forceps, and fans

• tape, vacuums, and forceps

• vacuums, fingers, and water

Which of the following is a nondestructive method of analyzing fibers?

• microscopy

• burning

• chromatography

• solvents

If many fibers were found at a crime scene, this would tell the investigators

• there was a struggle or violence

• there was a fire

• there was a cheap textile used

Fibers found at a crime scene classify as what type of evidence?

• biological

• direct

• class

• individual

Which of the following are ways to collect fiber evidence?

• vacuuming

• adhesive tape

• dusting

• forceps

• burning

What is the primary reason for collecting fiber evidence as soon as possible from a crime scene?

• To prevent contamination

• To avoid fiber degradation

• To ensure fibers are not lost

• To maintain chain of custody

Which of the following is a common method used to analyze the chemical composition of fibers?

• Microscopy

• Chromatography

• Burning

• Solvent extraction

In forensic science, what does the presence of multiple types of fibers at a crime scene suggest?

• A single source of fibers

• Multiple sources of fibers

• No significant information

• Contamination of evidence