Human rights — Prisoners — Right to humane treatment — Torture, inhuman and degrading treatment — Proof — Threats of torture by prison guards — Fair trial — Right to prompt trial — Right to consult counsel — Non bis in idem — Res judicata — International Covenant on Civil and Political Rights, 1966

International tribunals — Procedure — United Nations Human Rights Committee — Optional Protocol to the International Covenant on Civil and Political Rights — Evidence of violation — Allegations of ill-treatment of prisoners — Relevance of fact that ill-treatment had been shown in other proceedings to have taken place at prison — Whether allegations to be treated as substantiated in the absence of evidence to the contrary from the State Party