Mo. Rev. Stat. § 559.110: Bond may be required — forfeiture.

When the defendant is granted probation or parole by the court, the court before or at the time of granting the probation or parole, may in its discretion require the defendant, with one or more sureties, to enter into bond to the state of Missouri in a sum to be fixed by the court, conditioned that he or she will appear in court as directed during the continuance of the probation or parole, and not depart without leave of court. The bond shall be approved by the court or by the clerk at the direction of the court and forfeiture may be taken and prosecuted to final judgment on the bond in the manner as provided by law in cases of bonds taken for appearance of persons awaiting trial upon information or indictment.