Wyo. Stat. § 37-9-402
Whenever it shall come to the knowledge of the district attorney for any county in this state, or whenever complaint shall be made to such officer by any citizen or citizens thereof, that any railroad corporation or company doing business and running trains in or through such county is neglecting or refusing to provide a suitable depot or stopping place as provided by W.S. 37-9-401, or violating any of the provisions thereof, it shall be the duty of the district attorney to make a personal examination of the conditions complained of and if he finds that such railroad corporation or company has not provided a suitable depot or stopping place for the convenience of any town or city, and is not stopping all trains doing local business thereat, he shall at once prepare and cause the sheriff of his county to serve a written notice on any officer or agent of such railroad corporation or company to be found in said county to the effect that such violation exists in the vicinity of a certain town or city, naming it, and notifying said company that unless remedied within thirty (30) days from the date of the service of said notice, and in strict compliance with W.S. 37-9-401, proceedings against said derelict company will be commenced in the district court of such county to compel such compliance, and also to enforce the penalty provided for in W.S. 37-9-403.
W.S. 37-9-402