Mo. Rev. Stat. § 491.693
491.693 Testimony to be under oath.
491.693. Testimony to be under oath. — All testimony taken under sections 491.675 to 491.693 shall be under oath.
(L. 1985 H.B. 366, et al. § 13) Effective 7-19-85
Mo. Rev. Stat. § 491.693