Mo. Rev. Stat. § 491.210
Current with changes from the 2023 Legislative Session
No competent witness in a case shall be excused from answering a question relevant to the matter in issue, on the ground that the answer to such question may tend to establish the fact that such witness owes a debt or is otherwise subject to a civil suit.
§ 491.210, RSMo
RSMo 1939 § 1896