Mo. Rev. Stat. § 492.520
492.520 Answers to be reduced to writing.
492.520. Answers to be reduced to writing. — Such officers shall also reduce to writing all the answers of the witnesses to such questions; and all such questions and answers shall be written in the English language, and, being distinctly read to such witnesses, shall be sworn to and subscribed by them.
(RSMo 1939 § 1963) Prior revisions: 1929 § 1799; 1919 § 5486; 1909 § 6429