Hawaii Revised Statutes Division 4. Courts and Judicial Proceedings § 626-1, Rule 505

(a) Criminal proceedings. In a criminal proceeding, the spouse of the accused has a privilege not to testify against the accused. This privilege may be claimed only by the spouse who is called to testify.

(b) Confidential marital communications; all proceedings.

(c) Exceptions. There is no privilege under this rule (1) in proceedings in which one spouse is charged with a crime against the person or property of (A) the other, (B) a child of either, (C) a third person residing in the household of either, or (D) a third person committed in the course of committing a crime against any of these, or (2) as to matters occurring prior to the marriage.