International tribunals — European Commission of Human Rights — Proceedings before — Whether legal proceedings — Whether individual petitioner a party to proceedings — Function of Commission — Whether judicial or investigative — European Court of Human Rights — Proceedings before — Whether individual petitioner a party to proceedings — Petition by prisoner — Whether prison authorities entitled to examine correspondence between petitioner and his legal adviser concerning proceedings — European Agreement relating to Persons participating in Proceedings of the European Commission and Court of Human Rights, 1969, Article 3(2)

Human rights — Correspondence — Respect for — Prisoner’s correspondence with legal adviser — Enforcement of human rights — Access to organs of European Convention on Human Rights, 1950 — The law of England