"Permission was sought and I decided to grant it in the circumstances of this case. I was satisfied that this is a case in which it is in the interests of justice and the public interest, as well as consistent with the overriding objective, for me to have been prepared to allow the Secretary of State orally to assist me in relation to the contemporaneous documents; to assist me as to the implications of those documents; to bring to my attention any relevant passages in any relevant authorities; and to address me on the question of the lawfulness of the detention in this case."