Wyo. Stat. § 16-4-124
It is unlawful for any board of county commissioners or any town or city council to allow or pay out of the county or city funds, any bill for expenses incurred by any county officer or representative of the county, or of any municipal officer, representative or employee incurred while attending any convention or meeting of any peace officers or other convention or meeting of officers, employees or representatives either within or without the state of Wyoming, unless the adopted budget for the city, town or county provides for the payment of actual expense of any officer while attending meetings or conventions within or without the state of Wyoming and then only after the city or town council or board of county commissioners, as the case may be, shall specifically appropriate for those purposes. Any person violating this section is guilty of a misdemeanor and upon conviction thereof shall be punished by a fine of not less than one hundred dollars ($100.00), nor more than five hundred dollars ($500.00), imprisoned in the county jail for a period of not less than thirty (30) days, nor more than ninety (90) days, or both.
W.S. 16-4-124