Mo. Rev. Stat. § 545.080: Indictments, when not to be made public.

When any indictment shall be found against any person for a felony or misdemeanor, not being in actual confinement, or held by recognizance to answer thereto, such indictment shall not be open to the inspection of any person except the judge and clerk of the court and the prosecuting attorney; nor shall it be docketed or entered upon the minutes or records of the court until the defendant therein shall have been arrested.