49.—(1) Subject to the following provisions of this Article, this Part binds the Crown to the full extent authorised or permitted by the constitutional laws of Northern Ireland.
(2) Articles 32 to 37 do not apply to the Crown as owner or occupier of any land.
(3) No contravention by the Crown of any provision of this Part shall make the Crown criminally liable; but the High Court may, on the application of the Department, declare unlawful any act or omission of the Crown which constitutes such a contravention.
(4) If the Secretary of State certifies that it appears to him, as respects any land held or used by or on behalf of the Crown and any power of entry exercisable under Article 44 in relation to it, that it is requisite or expedient that, in the interests of national security, the power should not be exercisable in relation to that land, that power shall not be exercisable in relation to that land .
(5) In this Article any reference to the Crown includes the Crown in right of Her Majesty’s Government in the United Kingdom