Mo. Rev. Stat. § 512.310
Current with changes from the 2023 Legislative Session
The trial de novo shall be governed by the practice in trials before circuit judges, except that by agreement of parties the case may be tried by a jury of not less than six persons.
§ 512.310, RSMo
RSMo 1939 § 2747, A.L. 1945 p. 765 § 142, A.L. 1978 H.B. 1634, A.L. 1985 S.B. 5, et al. § B, A.L. 1986 S.B. 741