Fiber and Trace Evidence

Multiple Select

Textiles are which of the following ?

• cloth

• woven fabric

• short text messages

Comparison Microscope is essential in forensic science.

Multiple Choice

What is this type of microscope ?

• comparison microscope

• electron microscope

​Additional Description Words

flat

ribbon-like

convolutions

thick wall

small lumen.

almost transparent

mercerized

cylindrical

fewer convolutions

​Stereo microscopes A stereo microscope provides a 3D image or "stereo" image and typically will provide magnification between 10x - 40x. A stereo microscope typically provides both transmitted and reflected illumination and can be used to view a sample that will not allow light to pass through it.

Polarizing Microscope

Multiple Choice

Which fiber do you think this is?

• nylon

• cotton

• silk

Multiple Choice

What fiber do you think this is ?

• cotton

• hemp

• polyester

Multiple Choice

What fiber is this ?

• wool

• polyester

• asbestos

Multiple Select

Fibers can be which types of evidence ?

• trace

• class

• individual

Multiple Select

Plant fibers are which of the following ?

• jute

• manila

• angora

• asbestos

Multiple Select

Mineral Fibers include which

fibrous and

crystalline substance?

• fiberglass

• manila

• jute

• asbestos

Multiple Choice

Collecting fibers within 24 hours is critical in collecting evidence.

• true

• false

Fill in the Blank

Very small fibers are classified as _____ evidence

Multiple Choice

Mohair from which animal?

• rabbit

• goat

• cow

• sheep

Open Ended

Why is collecting fibers within 24 hours is critical?

Multiple Choice

What type of fibers are these?

• mineral fibers

• animal fibers

• plant fibers

Multiple Choice

Which type of fiber might this be?

• plant fiber

• mineral fiber