The district attorney shall exercise and perform all the powers, duties and functions provided by law for the county attorney of each county, and shall appoint all of his assistants. Wherever in the Statutes of Oklahoma, in existence at the effective date of this act, reference is made to the county attorney, the district attorney, acting personally or by his duly appointed assistant, shall perform all the powers, functions and duties and be subject to removal from office and to all the obligations and liabilities and shall stand in the stead of the county attorney under such statutes.
Okla. Stat. tit. 19, § 215.16