In 2011, Wyoming changed its state statutes to require warrants when law enforcement wants to forcibly draw blood from a DUI suspect. This precedes the US Supreme Court decision (Missouri v. McNeely) making that the law of the land. The following is a video shot by Cheyenne Police Dept. Chief Kozak on his cellphone on 7/31/2011. The suspect is Brett W. McIntyre who was 24 at the time. I obtained this via a public records request.