Okla. Stat. tit. 56 § 232
It shall be the duty of the Oklahoma Public Welfare Commission, its director, its agents and employees, in all cases where application is made for aid for neglected and dependent children to ascertain as to whether or not the need for such aid arises from the willful desertion or abandonment of said children by the person or persons obligated by law to provide for said children, and if said children are willfully abandoned or neglected by the person or persons required by law to support said children, to report the same to the district attorney of the county in which said children reside, and to furnish the district attorney with the names of witnesses and all information which they may have that the district attorney may require for the purpose of prosecuting the person or persons obligated by law to support such children under the criminal statutes of this state, and to require the applicant to request the district attorney of the county to file criminal charges against the person or persons legally responsible for the support of such child or children, and cooperate fully in prosecuting such charges to completion when filed by the district attorney, within three (3) months from the day of application in order to be eligible for further assistance payments.
Okla. Stat. tit. 56, § 232