California Code, Code of Civil Procedure - CCP § 2023.030

(a) The court may impose a monetary sanction ordering that one engaging in the misuse of the discovery process, or any attorney advising that conduct, or both pay the reasonable expenses, including attorney's fees, incurred by anyone as a result of that conduct. The court may also impose this sanction on one unsuccessfully asserting that another has engaged in the misuse of the discovery process, or on any attorney who advised that assertion, or on both. If a monetary sanction is authorized by any provision of this title, the court shall impose that sanction unless it finds that the one subject to the sanction acted with substantial justification or that other circumstances make the imposition of the sanction unjust.

(b) The court may impose an issue sanction ordering that designated facts shall be taken as established in the action in accordance with the claim of the party adversely affected by the misuse of the discovery process. The court may also impose an issue sanction by an order prohibiting any party engaging in the misuse of the discovery process from supporting or opposing designated claims or defenses.

(c) The court may impose an evidence sanction by an order prohibiting any party engaging in the misuse of the discovery process from introducing designated matters in evidence.

(d) The court may impose a terminating sanction by one of the following orders:

(e) The court may impose a contempt sanction by an order treating the misuse of the discovery process as a contempt of court.