Missouri constitution
Article I: bill of rights
Section 19

That no person shall be
compelled to testify against himself in a criminal cause, nor shall any person be put
again in jeopardy of life or liberty for the same offense, after being once acquitted by a
jury; but if the jury fail to render a verdict the court may, in its discretion, discharge the
jury and commit or bail the prisoner for trial at the same or next term of court; and if
judgment be arrested after a verdict of guilty on a defective indictment or information,
or if judgment on a verdict of guilty be reversed for error in law, the prisoner may be
tried anew on a proper indictment or information, or according to the law.