Mo. Rev. Stat. § 106.070
Current with changes from the 2023 Legislative Session
When articles of impeachment shall be presented to the supreme court, the court shall immediately appoint some day for the appearance of the accused and cause a summons to be issued, signed by the chief justice of the court and countersigned by one of the judges thereof, with a copy of the articles of impeachment annexed, requiring the accused to appear on the day appointed for that purpose, and answer the charges exhibited against him, which shall be served by the marshal of the court, or by special messenger by the court appointed, a reasonable time before the day set for his appearance.
§ 106.070, RSMo
RSMo 1939 § 12839, A.L. 1945 p. 1319 § 12841