Mo. Rev. Stat. § 575.260
1. A person commits the offense of tampering with a judicial proceeding if, with the purpose to influence the official action of a judge, juror, special master, referee, arbitrator, state prosecuting or circuit attorney, state assistant prosecuting or circuit attorney, or attorney general in a judicial proceeding, he or she:
(L. 1977 S.B. 60, A.L. 2009 H.B. 62, A.L. 2014 S.B. 491)
Effective 1-01-17