Forensic Fiber Analysis Flashcard

Front

What is the best method of packaging evidence collected at a crime scene?

Back

Package all evidence separately in the appropriate container.

Front

How can rayon, a regenerated synthetic fiber, be differentiated from a natural fiber?

Back

By examining if it contains fibers from cellulose.

Tags

NGSS.MS-PS1-3

Front

What type of fibers are heat tolerant and which melt at low temperatures?

Back

Natural fibers are heat tolerant, and synthetic fibers melt at low temperatures.

Front

What characteristic differentiates natural fibers from synthetic fibers?

Back

Natural fibers are heat tolerant.

Front

Is a microscopic match of hair enough to place a suspect in jail? Why or why not?

Back

No, because it does not contain the root, no DNA, so this is class evidence.

Front

What are natural fibers?

Back

Fibers that are derived from plants or animals.

Front

What are synthetic fibers?

Back

Fibers that are made from chemical processes, often derived from petroleum.

Tags

NGSS.MS-PS1-3

Front

What is the significance of the root in hair evidence?

Back

The root contains DNA, which is crucial for individualization.

Tags

NGSS.HS-LS3-1

Front

What is class evidence?

Back

Evidence that can only narrow down the suspect pool but cannot definitively identify an individual.

Front

What is the role of packaging in forensic fiber analysis?

Back

Proper packaging prevents contamination and preserves the integrity of the evidence.