Each private institution receiving, directly or by way of contract, any money from the state for purposes including the support or board of beneficiaries of the state, which refuses access to the proper board or official authorized by the state to visit such institution, shall forfeit all unpaid moneys or appropriations which it would otherwise have been entitled to receive from the state. All contracts with any such private institution made by the state, or by any authority acting for the state, shall be made subject to the provisions of this section.