C.R.S. § 15-12-304
15-12-304. Informal probate - unavailable in certain cases
15-12-304. Informal probate - unavailable in certain cases. (1) Applications for informal probate that relate to any of the following must be declined:
(a) One or more of a known series of testamentary instruments, other than a will and one or more codicils thereto, the latest of which does not expressly revoke the earlier; or
(b) A copy of the decedent's original will certified by the state court administrator pursuant to article 23 of this title 15.