Question

was a murder suspect wearing the sweatshirt police found? if the suspect wore the sweatshirt over a shirt, fibers from one would be on the other. in forensic science, this is called a the exchange principle. b polarized light. c exposure to light. d the gilbert 400x.

Explanation:

The described concept, where contact between two objects leads to a transfer of material (like fibers) between them, is a core tenet of forensic science. Polarized light, exposure to light, and the Gilbert 400x are unrelated to this transfer principle.

Answer:

A. the exchange principle.