Mo. Rev. Stat. § 313.660: Off-track wagering prohibited, penalty.

1. No individual shall for a fee, directly or indirectly, accept anything of value to be wagered or to be transmitted or delivered for wager in any pari-mutuel system of wagering on horse racing or for a fee deliver anything of value which has been received outside of the enclosure of a race track holding a horse race licensed under sections 313.500 to 313.710 to be placed as wagers in the pari-mutuel pool within such enclosure.

2. Any individual violating the provisions of this section shall upon conviction be guilty of a class D felony.