Colo. Rev. Stat. § 18-8-707
(1) A person commits tampering with a witness or victim if he intentionally attempts without bribery or threats to induce a witness or victim or a person he believes is to be called to testify as a witness or victim in any official proceeding or who may be called to testify as a witness to or victim of any crime to:
Source: L. 84: Entire part added, p. 502, § 4, effective July 1.
Editor's note: This section is similar to former § 18-8-605 as it existed prior to 1984.