Okla. Stat. tit. 21, § 21-577: Attorneys, use of name lawful, when

Whenever an action or proceeding is authorized by law to be

prosecuted or defended in the name of the people, or of any public

officer, board of officers or municipal corporation, on behalf of

another party, the Attorney-General or district attorney, or

attorney of such public officer or board or corporation may permit

any proceeding therein to be taken in his name by an attorney to be

chosen by the party in interest.