CALIFORNIA EVIDENCE CODE
Privilege Not to Testify Against Spouse
Evidence Code Section 973
(a) Unless erroneously compelled to do so, a married person who testifies in a proceeding to which his spouse is a party, or who testifies against his spouse in any proceeding, does not have a privilege under this article in the proceeding in which such testimony is given.
(a) Unless erroneously compelled to do so, a married person who testifies in a proceeding to which his spouse is a party, or who testifies against his spouse in any proceeding, does not have a privilege under this article in the proceeding in which such testimony is given.