Missouri Proof of Perjury Statute
575.070 – Proof of Falsity of Statements
No person shall be convicted of a violation of sections 575.040 [perjury], 575.050 [false affidavit] or 575.060 [false declaration] based upon the making of a false statement except upon proof of the falsity of the statement by:
(1) The direct evidence of two witnesses; or
(2) The direct evidence of one witness together with strongly corroborating circumstances; or
(3) Demonstrative evidence which conclusively proves the falsity of the statement; or
(4) A directly contradictory statement by the defendant under oath together with
(a) The direct evidence of one witness; or
(b) Strongly corroborating circumstances; or
(5) A judicial admission by the defendant that he made the statement knowing it was false. An admission, which is not a judicial admission, by the defendant that he made the statement knowing it was false may constitute strongly corroborating circumstances.