Cal. Business and Professions Code § 6049.2

In all disciplinary proceedings pursuant to this chapter, the testimony of a witness given in a contested civil action or special proceeding to which the person complained against is a party, or in whose behalf the action or proceeding is prosecuted or defended, may be received in evidence, so far as relevant and material to the issues in the disciplinary proceedings, by means of a duly authenticated transcript of such testimony and without proof of the nonavailability of the witness; provided, the State Bar Court may order the production of and testimony by such witness, in lieu of or in addition to receiving a transcript of his or her testimony and may decline to receive in evidence any such transcript of testimony, in whole or in part, when it appears that the testimony was given under circumstances that did not require or allow an opportunity for full cross examination.