Mo. Rev. Stat. ยง 40.220
40.220 New trial, petition by accused when, grounds โ time limitation.
40.220. New trial, petition by accused when, grounds โ time limitation. โ At any time within two years after approval by the convening authority of a court-martial sentence which extends to dismissal, dishonorable or bad conduct discharge, the accused may petition the governor for a new trial on ground of newly discovered evidence or fraud on the court-martial.
(L. 1984 H.B. 1035 ยง 73)