California, United States of America
The following excerpt is from People v. Melchor, F064342 (Cal. App. 2013):
Amendment also provides the privilege of a person, as a witness in any proceeding, civil or criminal, to refuse to answer particular questions which may tend to incriminate him or her in criminal activity. (Cramer v. Tyars, supra, 23 Cal.3d at p. 137.)
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