Okla. Stat. tit. 21, § 21-951: Investigation of alleged violations of act

It shall be the duty of any judge of any court of record, upon

the written request of the district attorney, or upon the sworn

complaint of any other person, to issue subpoenas for any witness

that may have knowledge of the violation of any provision of this

act, and such judge shall have the power and it shall be his duty to

compel such witness to appear before him and give testimony and

produce any books or papers that will aid or assist in the

prosecution of such investigation and inquiry into any violation of

any provision of this act; but no person shall be prosecuted or

subjected to any penalty or forfeiture for or on account of any

transaction, matter or thing concerning which he may so testify or

produce evidence. The testimony of each witness shall be reduced to

writing by said judge, or by some person designated by him, and the

same shall be signed by such witness. No person shall disclose any

evidence so taken, nor disclose the name of any person so subpoenaed

and examined, except when lawfully reguired to testify as a witness

in relation thereto; and the unlawful disclosure, by any person, of

any such evidence or of any matter or thing concerning such

examination shall be a misdemeanor. Should said judge be unable to

hold and conduct such inquiry and investigation for want of time, he

may appoint a special judge who shall possess the qualifications and

have the power in respect to such matters as the judge of the

district court. Should any witness refuse to appear before such

judge, in obedience to such subpoena, or refuse to produce any books

or papers when lawfully required so to do, or having appeared, shall

refuse to answer any proper question, or sign his testimony when so

required, it shall be the duty of such judge to commit such person

to the county jail until he shall consent to obey such orders and

command of such judge in the premises, and in addition thereto such

person may be punished, as for contempt of court, in accordance with

the Constitution and laws of this state. The special judge

appointed under the provisions of this section shall take the oath

of the Constitution for state officers, and shall receive the

compensation allowed by law for notaries public for taking

depositions and be paid by the county in which such proceeding is

had, upon the order of the judge who appointed him. When it is

shown upon the taking of such testimony that there is probable cause

to believe that any person has violated any provision of this act,

the district attorney shall immediately prepare an information

charging such person with such offense and file such information in

some court of competent jurisdiction.