Wyo. Const. art. 14, § 1

Stated salaries to be paid. All state, city, county, town and school officers, (excepting justices of the peace and constables in precincts having less than fifteen hundred population, and excepting court commissioners, boards of arbitration and notaries public) shall be paid fixed and definite salaries. The legislature shall, from time to time, fix the amount of such salaries as are not already fixed by this constitution, which shall in all cases be in proportion to the value of the services rendered and the duty performed.