Mo. Rev. Stat. § 491.200
Current with changes from the 2023 Legislative Session
A person summoned as a witness, and attending, who shall refuse to give evidence which may lawfully be required to be given by such person, on oath or affirmation, may be committed to prison by the court, or other person authorized to take his deposition or testimony, there to remain, without bail, until he gives such evidence.
§ 491.200, RSMo
RSMo 1939 § 1905