Okla. Stat. tit. 6, § 6-2117: Power of subpoena - Designation of hearing officer

(a) For the purposes of this act, the Commissioner or the

hearing officer as hereinafter provided has power to require by

subpoena the attendance and testimony of witnesses, and the

production of all documentary evidence relating to any matter under

hearing pursuant to this act, and shall issue such subpoenas at the

request of an interested party. The hearing officer may sign

subpoenas in the name of the Commissioner.

(b) The Commissioner may, in his discretion, direct that any

hearing pursuant to this act shall be held before a competent and

qualified agent of the Commissioner, whom the Commissioner shall

designate as the hearing officer in such matter. The Commissioner

and the hearing officer are hereby empowered to, and shall,

administer oaths and affirmations to all witnesses appearing before

them. The hearing officer, upon the conclusion of the hearing

before him, shall certify the evidence to the Commissioner.

(c) Any district court of this state, within the jurisdiction of

which such hearing is carried on, may, in case of contumacy, or

refusal of a witness to obey a subpoena, issue an order requiring

such witness to appear before the Commissioner, or the hearing

officer, or to produce documentary evidence, or to give testimony

touching the matter in question, and the willful refusal and failure

of any such witness to obey such order of the court shall constitute

contempt of court.