Wyo. Stat. § 31-6-106: No liability incurred by persons requested to administer test.

No physician, registered nurse, qualified clinical or laboratory technician or other person who routinely does venipunctures at the direction of a physician or facility in which the blood is drawn shall incur any civil or criminal liability as a result of the proper administration of a blood test when requested in writing by a peace officer or any other person to administer the test.