Colo. Rev. Stat. § 2-4-303
The repeal, revision, amendment, or consolidation of any statute or part of a statute or section or part of a section of any statute shall not have the effect to release, extinguish, alter, modify, or change in whole or in part any penalty, forfeiture, or liability, either civil or criminal, which shall have been incurred under such statute, unless the repealing, revising, amending, or consolidating act so expressly provides, and such statute or part of a statute or section or part of a section of a statute so repealed, amended, or revised shall be treated and held as still remaining in force for the purpose of sustaining any and all proper actions, suits, proceedings, and prosecutions, criminal as well as civil, for the enforcement of such penalty, forfeiture, or liability, as well as for the purpose of sustaining any judgment, decree, or order which can or may be rendered, entered, or made in such actions, suits, proceedings, or prosecutions imposing, inflicting, or declaring such penalty, forfeiture, or liability.
C.R.S. § 2-4-303