Okla. Stat. tit. 57 § 213
Upon being directed to do so by the Director of Corrections or the designee of the Director, the appropriate warden or superintendent shall send to the institution for which the requisition was made, current qualified prisoners to perform the services found by the Director or the designee to be needed at such institution, and shall furnish the names of such prisoners to the State Pardon and Parole Board for the purpose of securing limited clemency for such prisoners for the performance of services at such institution. Any such prisoner shall be returned to the institution from which he was sent, upon order of the Director or the designee or the head of such institution, either with or without notice, and the return of a prisoner shall be compulsory for a violation of any law or a violation of his parole agreement.
Okla. Stat. tit. 57, § 213