Wyoming MCR 6. Pretrial Disclosures are used in civil cases in Wyoming. These disclosures are mandatory and allow all parties to the case to share information that will be used in the case before trial. Types of Wyoming MCR 6. Pretrial Disclosures include: disclosure of all facts, documents, and witnesses known to either party; disclosure of any expert witnesses and the facts and data considered by them; and disclosure of any potential conflicts of interest. The purpose of these disclosures is to ensure that all parties to the case are on an equal footing so that the outcome of the case is decided on the merits of the evidence presented.