Mo. Rev. Stat. § 545.550: Defendant in custody, to be removed, when — which county jail to house defendant.

1. If the defendant be in actual custody or confinement, the court or officer granting the order of removal shall, subject to any arrangements made pursuant to subsection 2 of this section, also make an order commanding the sheriff to remove the body of the defendant to the jail of the county into which the cause is to be removed, and then deliver him to the keeper of such jail, together with the warrant or process, by virtue of which he is imprisoned or held.

2. The sheriff of the county granting the change of venue and the sheriff of the county into which the cause is removed may agree as to which county's jail will house the defendant. If the sheriffs do not agree where the defendant will be confined, the defendant will be confined in the county into which the cause is removed. In the event that the county granting the change of venue continues to house the defendant, the sheriff of that county shall be responsible for the timely transportation of the defendant for all court appearances that require the presence of the defendant.