Colorado Revised Statutes Title 16. Criminal Proceedings § 16-7-303. Fact of discussion and agreement not admissible

Except as to proceedings resulting from a plea of guilty or nolo contendere (no contest) which is not withdrawn, the fact that the defendant or his defense counsel and the district attorney engaged in plea discussions or made a plea agreement shall not be received in evidence against or in favor of the defendant in any criminal or civil action or administrative proceeding.