Wis. Stat. § 70.502: Fraud by member of board of review.

Any member of the board of review of any assessment district who shall intentionally fix the value of any property assessed in such district, or shall intentionally agree with any other member of such board to fix the value of any of such property at less or more than the true value thereof prescribed by law for the valuation of the same, or shall intentionally omit or agree to omit from assessment, any property liable to taxation in such assessment district, or shall otherwise intentionally violate or fail to perform any duty imposed upon the member by law relating to the assessment of property for taxation, shall forfeit to the state not less than $50 nor more than $250.