Cal. Civ. Proc. Code § 1991.1

Disobedience to a subpoena requiring attendance of a witness before an officer out of court in a deposition taken pursuant to Title 4 (commencing with Section 2016.010), or refusal to be sworn as a witness at that deposition, may be punished as contempt, as provided in subdivision (e) of Section 2023.030, without the necessity of a prior order of court directing compliance by the witness.