Relationship of international law and municipal law — Treaties — Treaty not incorporated into English law — European Convention on Human Rights, 1950 — Effect in English law — Effect of decision of the European Court of Human Rights — Whether obligations and rights created by the Convention justiciable in the English courts — Public policy — Whether courts should have regard to Convention in determining rules of public policy

Human rights — Association — Freedom of — Right to join trade union — European Convention on Human Rights, 1950, Article 11 — Whether conferring right for individual to join trade union of his choice — Extent of right — Agreement between trade unions that union will not accept into membership someone who has been a member of another union — Application of this principle by Trades Union Congress disputes committee — Individual expelled from union in order to give effect to ruling of committee — Whether expulsion contrary to Article 11 — Whether contrary to English public policy — The law of England