Mo. Rev. Stat. § 492.540

The officer taking such depositions shall attach thereto his certificate, stating the time and place when and where such depositions were taken, that the witnesses were duly sworn as to the truth of their depositions, and that they subscribed the same, and shall enclose them, together with the commission and the evidence of notice; and the whole, being carefully sealed up, shall be delivered by the officer to the recorder of the county in which the suit is pending, or in which the property or matter is situate or belongs, to which such depositions relate.