492.570. Depositions taken and certified in conformity tosections 492.420 to 492.560, or duly certified copies of therecord of such depositions, may be used and read as evidence inany cause or judicial proceeding to which they relate, in favorof any parties thereto, or any or either of them, or his or theirpersonal representatives, heirs or assigns, or their legalrepresentatives
(1) If the deponent is dead;
(2) If he be unable to give testimony, by reason of mentalincapacity;
(3) If he be rendered incompetent, by judgment of law;
(4) If he be removed, so that his testimony cannot beobtained.
(RSMo 1939 § 1968, A.L. 1983 S.B. 44 & 45)Prior revisions: 1929 § 1804; 1919 § 5491; 1909 § 6434