Colorado Revised Statutes Title 35. Agriculture § 35-42-111. Investigations--access--administrative subpoena

(2)(a) At any reasonable time during regular business hours, the commissioner shall have free and unimpeded access, upon consent or upon obtaining an administrative search warrant, to all buildings, yards, pens, pastures, and other areas in which any animals are kept, handled, or transported for the purpose of carrying out any provision of this article or any rule made pursuant to this article.

(b) The commissioner shall have full authority to administer oaths and take statements, to issue administrative subpoenas requiring the attendance of witnesses and the production of all books, memoranda, papers, and other documents, articles, or instruments and to compel the disclosure by such witnesses of all facts known to them relative to the matters under investigation. Upon the failure or refusal of any witness to obey any subpoena, the commissioner may petition the district court, and, upon a proper showing, the court may enter an order compelling the witness to appear and testify or produce documentary evidence. Failure to obey such an order of the court shall be punishable as a contempt of court.