California Code, Probate Code - PROB § 3082

Upon the filing of a petition under this article, the court may cite the spouse who has the management or control of community property to appear before the court, and the court and the petitioner may examine the spouse under oath concerning the community property and other matters relevant to the petition filed under this article. If the person so cited refuses to appear and submit to an examination, the court may proceed against the person as provided in Article 2 (commencing with Section 8870) of Chapter 2 of Part 3 of Division 7. Upon such examination, the court may make an order requiring the person cited to disclose his or her knowledge of the community property and other matters relevant to the petition filed under this article, and if the order is not complied with the court may proceed against the person as provided in Article 2 (commencing with Section 8870) of Chapter 2 of Part 3 of Division 7.