Human rights — Freedom of expression — European Convention on Human Rights, 1950, Article 10 — Limitations on freedom of expression — Broadcasting — Ban on broadcasting direct speech of representatives of terrorist and related organizations — Whether justifiable

Relationship of international law and municipal law — Treaties — Effect in municipal law — Treaty not implemented by legislation — Whether part of domestic law — Presumption that Parliament does not intend to legislate contrary to treaty obligations — Extent of presumption — Unambiguous legislation — Legislation conferring discretion upon minister — Whether Parliament presumed to intend that discretion be exercised in accordance with treaty — European Convention on Human Rights, 1950 — The law of England