(a) Subpoenas. Upon the request of a party to a contested case and upon the showing of good cause, a subpoena may be issued by the commissioner or an administrative law judge employed by the department as provided by the APA, §2001.089.(b) Depositions.(1) Issuance of commissions. Upon the request of a party to a contested case and the deposit of the appropriate fees, a commission to take a deposition shall be issued by the commissioner or an administrative law judge employed by the department, as provided by the APA, §2001.094. A commission may be issued for the taking of an oral deposition or a deposition by written questions.(2) Requesting a deposition by written questions. A copy of the written questions must be attached and filed with the request for taking of a deposition by written questions.(c) Order to produce. Upon the filing of a motion to produce in accordance with the APA, §2001.091, the commissioner, the general counsel, or the administrative law judge may issue an order requiring the production of the requested items.