Colo. R. Evid. 405 (2026)

(a) Reputation or opinion. In all cases in which evidence of character or a trait of character of a person is admissible, proof may be made by testimony as to reputation or by testimony in the form of an opinion. On cross-examination, inquiry is allowable into relevant specific instances of conduct.

(b) Specific instances of conduct. Except as limited by §§ 16-10-301 and 18-3-407, in cases in which character or a trait of character of a person is an essential element of a charge, claim or defense, proof may also be made of specific instances of that person’s conduct.

(Federal Rule Identical Except for Statutory Limitation.)

Source: (b) amended September 29, 2005, effective January 1, 2006.