021-9 Wyo. Code R. § 9-5
(a) Until ten (10) days before the hearing, discovery and the taking of depositions shall be available to the parties as provided in W.S. 16-3-107.
(b) The Commissioner is subject to the discovery provisions of this Section but neither the Commissioner nor any employee of the Division shall be required to disclose protected material, nor shall any of them be compelled to testify or give a deposition. Discovery sought from any employee of the Division initially shall be by written application to the Commissioner. If the Commissioner refuses to allow discovery in whole or in part, the aggrieved party may apply to the district court for the district in which the hearing is to be conducted for an order directed to the appropriate person to compel discovery.
021-9 Wyo. Code R. § 9-5