“111. …In addressing the question, however, a court would have to contemplate the two possible alternative solutions, each of which gives decisive weight to the interests of the prisoner. One solution would be to disclose the information to the prisoner’s representative and, if possible, to require the informant to give evidence, even though this would risk putting his life or health in jeopardy. That solution would be, to say the least, unattractive and might well give rise to significant issues under articles 2 and 3 of the European Convention. The other solution would be for the board to exclude from their consideration any evidence which could not be safely disclosed to the prisoner or his representative. In other words, the board should close their eyes to evidence, even though it would be relevant to the decision which Parliament has charged them to take for the protection of the public. That solution too would be – again, to say the least – unattractive and, moreover, hard to reconcile with the board’s statutory duty not to direct a prisoner’s release on licence unless they are satisfied that it is no longer in the interests of the public that he should be confined…”