US lawOklahomaConstitutionArticle XXIII2Ok. Const. art. XXIII, § 2OK Const., Article XXIII, Section 2Length: 10 wordsOfficial source Contracting prohibited. The contracting of convict labor is hereby prohibited.PreviousOk. Const. art. XXIII, § 1ANextOk. Const. art. XXIII, § 3