Mo. Rev. Stat. § 40.390
Riot or breach of the peace, causing or participating — court-martial.
40.390. Riot or breach of the peace, causing or participating — court-martial. — Any person subject to sections 40.005 to 40.490 who causes or participates in any riot or breach of the peace shall be punished as a court-martial may direct.
(L. 1984 H.B. 1035 § 114)