Mo. Rev. Stat. § 545.110
Current with changes from the 2023 Legislative Session
If there be at any time pending against the same defendant two indictments for the same offense, or two indictments for the same matter, although charged as different offenses, the indictment first found shall be deemed to be suspended by such second indictment, and shall be quashed.
§ 545.110, RSMo
RSMo 1939 § 3939