The inmates shall be graded and classified in such a manner as is most conducive to prison discipline and the moral status of the inmates.Acts 1895 (Ex. Sess.), ch. 7, § 4; Shan., § 7520; mod. Code 1932, § 12117; Acts 1972, ch. 576, § 9; T.C.A. (orig. ed.), § 41-302.
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