Every inmate of a state correctional facility may be entitled to a deduction of no more than one hundred (100) credits for each meritorious act performed and approved by the Department of Corrections. Such a deed, performed by an inmate, shall be within the public interest in enhancing public safety and life. The Department of Corrections shall not have the authority to revoke such credit awarded to an inmate.
Okla. Stat. tit. 57, § 138.1