Missouri Revised Statutes Title IX. Suffrage and Elections § 115.633. Class two election offenses

(1) On the day of election or before the counting of votes is completed, willfully concealing, breaking, or destroying any ballot box used or intended to be used at such election or willfully or fraudulently concealing or removing any ballot box from the custody of the election judges;

(2) Willfully tampering with, disarranging, defacing, materially altering, impairing, or destroying any voting machine or automatic tabulating equipment owned or leased by or loaned to an election authority.