Okla. Stat. tit. 21, § 650.8

A. Every person who, without justifiable or excusable cause, knowingly commits any assault, battery or assault and battery upon the person of an employee of a facility maintained by the Office of Juvenile Affairs, a facility maintained by a private contractor pursuant to a contract with the Office of Juvenile Affairs primarily for delinquent children, a juvenile detention center, or a juvenile bureau, while the employee is in the performance of his duties, shall upon conviction thereof be guilty of a Class B6 felony offense. B. This section shall not supersede any other act or acts, but shall be cumulative thereto.