C.R.S. § 13-8-121
13-8-121. Appearance by district attorney and city attorney
13-8-121. Appearance by district attorney and city attorney. Upon the request of the court, the district attorney shall represent the state in the interest of the child in any proceedings brought under section 19-1-104 (1)(a), C.R.S., and the city attorney shall represent the state in the interest of the child in any other proceedings.