Any member of the board of a district to which this Act applies or any other person holding any other office, trust or employment under such a district who shall wilfully violate any of the provisions of this Act shall be guilty of a business offense and shall be fined not to exceed $10,000 and shall forfeit his right to his office, trust or employment and shall be removed therefrom. Any such member or other person shall be liable for any sum that may be unlawfully diverted from such working cash fund or otherwise used to be recovered by such district or by any taxpayer in the name of and for the benefit of such district, in an appropriate civil action. Such taxpayer shall give bond for costs and be liable for all costs assessed against the district in such suit, and judgment shall be rendered accordingly. Nothing herein shall bar any other remedies.