Wyo. Stat. § 6-2-312 : CRIMES AND OFFENSES — OFFENSES AGAINST THE PERSON — SEXUAL ASSAULT —2-312 - Evidence of victim's prior sexual conduct or reputation; procedure for introduction

(a) In any prosecution under this article or for any lesser included offense, if evidence of the prior sexual conduct of the victim, reputation evidence or opinion evidence as to the character of the victim is to be offered the following procedure shall be used:
(i) A written motion shall be made by the defendant to the court at least ten (10) days prior to the trial stating that the defense has an offer of proof of the relevancy of evidence of the sexual conduct of the victim and its relevancy to the defense;
(ii) The written motion shall be accompanied by affidavits in which the offer of proof is stated;
(iii) If the court finds the offer of proof sufficient, the court shall order a hearing in chambers, and at the hearing allow the questioning of the victim regarding the offer of proof made by the defendant and other pertinent evidence;
(iv) At the conclusion of the hearing, if the court finds that the probative value of the evidence substantially outweighs the probability that its admission will create prejudice, the evidence shall be admissible pursuant to this section. The court may make an order stating what evidence may be introduced by the defendant, which order may include the nature of the questions to be permitted.
(b) This section does not limit the introduction of evidence as to prior sexual conduct of the victim with the actor.
(c) Any motion or affidavit submitted pursuant to this section is privileged information and shall not be released or made available for public use or scrutiny in any manner, including posttrial proceedings.

W.S. 6-2-312