Mo. Rev. Stat. § 532.380
532.380 Prisoner discharged, when.
532.380. Prisoner discharged, when. — If no legal cause be shown for the imprisonment or restraint, or for the continuation thereof, the court shall forthwith discharge such party from the custody or restraint under which he is held.
(RSMo 1939 § 1620, A.L. 1978 H.B. 1634) Prior revisions: 1929 § 1456; 1919 § 1906; 1909 § 2471 Effective 1-02-79