The office of county indigent defender shall be assumed by such attorneys, authorized to practice law in the State of Oklahoma, as shall be appointed either on a full-time or part-time basis by the judges of the courts of record of such county and shall continue to serve at the pleasure of said judges, and the attorney designated by said judges as the person in charge of such office shall be the county indigent defender, and all other attorneys who may be appointed to assist such county indigent defender shall be designated as assistant county indigent defender, of such county.
Okla. Stat. tit. 19, § 138.2