C.R.S. § 8-4-118

The director or the director’s designated representative may investigate and gather data pertinent to matters that may aid in carrying out the provisions of this article. In any case where a complaint has been filed with the director or the director’s designated representative regarding a violation of this article, or where the director has reasonable grounds to believe that a field labor contractor has violated provisions of this article, the director or the director’s designated representative may investigate and issue subpoenas as provided by section 8-4-112 requiring the attendance and testimony of any witness or the production of any evidence in connection with such investigation.