California Code, Government Code - GOV § 11186

The superior court in the county in which any hearing is held or any investigation is conducted under the direction of the head of a department or the county in which testimony is designated to be given or documents or other items are designated to be produced, has jurisdiction to compel the attendance of witnesses, the giving of testimony, the answering without objection of interrogatories, and the production, inspection, and copying of papers, books, accounts, documents, and other items described in subdivision (e) of Section 11181 as required by any subpoena issued by the department head.