C.R.S. § 16-8-114

(1) and (2)(Deleted by amendment, L. 2008, p. 1857, § 11, effective July 1, 2008.)(3)(a) Evidence of any determination as to the defendant’s competency or incompetency is not admissible on the issues raised by the pleas of not guilty or not guilty by reason of insanity or the affirmative defense of impaired mental condition. This paragraph (a) shall apply only to offenses committed before July 1, 1995. (b) Evidence of any determination as to the defendant’s competency or incompetency is not admissible on the issues raised by the pleas of not guilty or not guilty by reason of insanity. This paragraph (b) shall apply to offenses committed on or after July 1, 1995.