Restriction on making, etc., of maintenance orders.
18.—In any proceedings under the enactments referred to in section 17 (1) against a person residing in a reciprocating jurisdiction, a maintenance order shall not be made, varied or revoked unless—
(a) notice of the institution of the proceedings has been served on him in accordance with the law of that jurisdiction and in sufficient time to enable him to arrange for his defence, and
(b) the notice included a statement of the substance of the complaint or application, as the case may be.