Mo. Rev. Stat. § 546.560
Current with changes from the 2023 Legislative Session
If the defendant is in custody, he must be brought before the court for judgment; if he is not present when his personal attendance is necessary, the court may order the clerk to issue a warrant for his arrest, which may be served in any county in the state, as a warrant of arrest in other cases.
§ 546.560, RSMo
RSMo 1939 § 4101