Mo. Rev. Stat. § 533.010
If the plaintiff claim in his petition the possession of specific personal property, he may, at the time of filing his petition, or at any other time afterward, before the rendition of judgment in the cause, file his affidavit, or the affidavit of some other person in his behalf, showing:
(RSMo 1939 § 1788)
Prior revisions: 1929 § 1624; 1919 § 2072; 1909 § 2637
(1976) Admission made at pretrial conference answered question which would have been subject of hearing required by this section and failure to hold hearing did not result in denial of due process. Morris Plan Co. v. Excelsior Estates, Inc. (Mo.), 540 S.W.2d 44.