Colorado Code
Part 5 - Perjury and Related Offenses
§ 18-8-506. Perjury and False Swearing - Proof

In any prosecution for perjury or false swearing, except a prosecution based upon inconsistent statements pursuant to section 18-8-505, falsity of a statement may not be established solely through contradiction by the uncorroborated testimony of a single witness.
Source: L. 71: R&RE, p. 464, § 1. C.R.S. 1963: § 40-8-506.