Intro to the Federal Rules of Evidence - 22

F. PRIVILEGE AGAINST SELF-INCRIMINATION

1. Holders
The privilege applies not only to criminal defendants, but also to any other person who is asked to give testimony that may incriminate him.
For example, witnesses in grand jury proceedings, congressional investigations, other people’s criminal trials, a civil proceeding, pre-trial discovery proceedings (depositions), questioning by the police.

2. Requirements
a. It is asserted by an individual.
b. the communication sought is testimonial.
c. the communication is compulsory.
d. the communication might incriminate the witness.