Mo. Rev. Stat. § 537.400
Current with changes from the 2023 Legislative Session
If any person shall willfully set on fire any woods, marshes or prairies whether his own or not, so as thereby to occasion any damage to any other person, such person shall make satisfaction in double damages to the party injured, to be recovered by civil action.
§ 537.400, RSMo
RSMo 1939 § 3660