Why might an investigator want to collect hairs during a victims autopsy?
A. To use as a control sample for another case
B. to use as evidence that the victim was killed
C. to compare against unknown sample hairs found at the scene
D. to confirm the victims indentity

D.to confirm the victims indentity

Explanation:

With DNA samples they can use that hair to find out where the person is from since most murders are caused by people who normaly relate to them  

I hope this helps if it doesn't im sorry

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.