[F1Annulment etc. of overseas adoptionsN.I.
55A.—(1) The High Court may, on an application under this paragraph, by order annul a Convention adoption or a Convention adoption order on the ground that the adoption or order is contrary to public policy.
(2) The High Court may, on an application under this paragraph—
(a)order that an overseas adoption or a determination shall cease to be valid in Northern Ireland on the ground that the adoption or determination is contrary to public policy or that the authority which purported to authorise the adoption or make the determination was not competent to entertain the case;
(b)decide the extent, if any, to which a determination has been affected by a subsequent determination.
(3) Except as provided by this Article the validity of a Convention adoption, a Convention adoption order, an overseas adoption or a determination shall not be impugned in proceedings in any court in Northern Ireland.]