One of the most important purposes of physical evidence is to establish the identity of the suspect or victim.
(a) true
(b) false

True.

Explanation:  For most court members, the interest in collecting detainees' DNA is as legitimate as the practice of taking pictures and collecting fingerprints. In rejecting the view that the practice is an illegal practice, the five magistrates argued that the collection of genetic material is justified in establishing the identity of the person in custody.

the 5th amendment is about the justice system

explanation:

there is no double jeopardy

due process

grand jury

and that you can’t incriminate yourself

if im not mistaken its a. collective emotional arousal