Human rights — Elections — Right to free elections — Right to stand as candidate — Former President barred from standing for office because of impeachment — Admissibility of author’s communication to Human Rights Committee — Examination of claim under another procedure of international investigation or settlement — European Court of Human Rights — Council of Ministers — Whether author’s claims incompatible ratione materiae with International Covenant on Civil and Political Rights, 1966 — Consideration of merits — Entitlement to a fair and public hearing by a competent, independent and impartial tribunal established by law in determination of any criminal charges or of rights or obligations in a suit at law — Protection against finding of criminal liability for any act or omission not constituting a criminal offence when committed — Right to take part in the conduct of public affairs — European Convention on Human Rights, 1950, Article 3 of Protocol No 1 — International Covenant on Civil and Political Rights, Articles 14, 15 and 25 — United Nations Human Rights Committee