Mo. Rev. Stat. § 550.040
In all capital cases, and those in which imprisonment in the penitentiary is the sole punishment for the offense, if the defendant is acquitted, the costs shall be paid by the state; and in all other trials on indictments or information, if the defendant is acquitted, the costs shall be paid by the county in which the indictment was found or information filed.
(RSMo 1939 § 4223, A.L. 2009 H.B. 62)
Prior revisions: 1929 § 3828; 1919 § 4171; 1909 § 5379