“More serious issues arise in the case of persons who, as is recorded in paragraph 6.93 of the CIPU report, are suspected of membership of the PKK, left wing radical organisations … militant Islamic groups, or anyone suspected of giving support or shelter to one of those organisations. Such persons are handed over to the Anti-Terror Branch, and it was common ground before us that in those circumstances they would face a real risk of persecution or breach of their human rights”