Mo. Rev. Stat. § 313.813
The commission may promulgate rules allowing a person that is a problem gambler to voluntarily exclude him/herself from an excursion gambling boat. Any person that has been self-excluded is guilty of trespassing in the first degree pursuant to section 569.140 if such person enters an excursion gambling boat.
(L. 2000 S.B. 902 § 313.833)