Mo. Rev. Stat. § 211.431
Any person seventeen years of age or over who willfully violates, neglects or refuses to obey or perform any lawful order of the court, or who violates any provision of this chapter is guilty of a class A misdemeanor.
(L. 1957 p. 642 § 211.410, A.L. 1982 S.B. 497)
*This section was amended by both S.B. 793 and S.B 800, 2018. Due to a delayed effective date, both versions are printed.