Upon the application of any party, the hearing officer shall issue subpoenas to require attendance to take testimony in any matter before it. The hearing officer may issue subpoenas on his/her own motion. The person making an application for a subpoena shall be responsible for serving it and for the payment of witness fees and mileage. An application for the production of books, documents, or other things under the control of the witness shall be supported by an affidavit such as is prescribed by Section 1985 of the Code of Civil Procedure of the State.