Practice – Hearing. The issue for determination in the present judicial review proceedings was the extent to which the claimant Secretary of State had to provide disclosure of closed material to special advocates appointed to represent the interests of the interested parties before the defendant Special Immigration Appeals Commission. The Divisional Court required disclosure of such material as had been used by the author of any relevant assessment to found or justify the facts or conclusions expressed or, if subsequently re-analysed, disclosure should be of such material as was considered sufficient to justify those facts and conclusions, and which had been in existence at the date of decision.