Section 4

An order under this section may provide that the provisions of this Act shall apply to the foreign State subject to such restrictions, limitations, exceptions, modifications, adaptations, conditions or qualifications as are specified in the order, and in that event the provisions of this Act shall apply accordingly.

An order made under this section shall be conclusive evidence that the treaty or other agreement referred to in the order complies with this Act, and that this Act applies to the prescribed foreign State referred to in the order.

The validity of the order made under this section shall not be questioned in any legal proceedings.

The Minister may by a subsequent order vary or revoke any order previously made under this section.