Okla. Stat. tit. 21, § 21-443a: Additional punishment under rules and regulations of

prison after escape.

In addition, all prisoners who escape from either of the

aforesaid prisons either while confined therein, or while at large

as a trusty, when apprehended and returned to the prison, shall be

punishable by the prison authorities in such manner as may be

prescribed by the rules and regulations of the prison provided that

such punishment shall not be cruel or unusual.