Okla. Stat. tit. 63, § 63-4042: Denial, suspension or revocation of license - Hearing -

Notice - Production of documents - Subpoena - Witnesses.

Service Oklahoma may deny any application for license, or

suspend or revoke a license issued or impose a fine, only after a

hearing of which the applicant, or licensee affected, shall be given

at least ten (10) days' written notice specifying the reason for

denying the applicant a license, or, in the case of a revocation or

suspension or imposition of a fine, the offenses of which the

licensee is charged. Such notices may be served as provided by law

for the service of notices, or by mailing a copy by registered mail

to the last-known residence or business address of such applicant or

licensee. The hearing on such charges shall be at such time and

place as Service Oklahoma may prescribe and the aforementioned

notice shall further specify the time and place. Service Oklahoma

shall have the power to compel the production of all records, papers

and other documents which may be deemed relevant to the proceeding

bearing upon the complaints. Service Oklahoma shall have the power

to subpoena and bring before it any person, or take testimony of any

such person by deposition, with the same fees and mileage and in the

same manner as prescribed in proceedings before courts of the state

in civil cases. Any party to such hearing shall have the right to

the attendance of witnesses in his behalf upon designating to

Service Oklahoma the person or persons sought to be subpoenaed.