17.— (1) Every act done, or purporting to have been done, before the commencement of this Act, under and in accordance with the Europol Act 1997 or the Council Decision, shall be, and be deemed always to have been, valid and effectual for all purposes.

(2) If subsection (1) would, but for this subsection, conflict with a constitutional right of any person, the operation of that subsection shall be subject to such limitation as is necessary to secure that it does not so conflict but shall otherwise be of full force and effect.