Human rights — Right to a hearing — Independent tribunal established by law — American Convention on Human Rights, 1969, Article 8(1) — Whether States required to legislate to guarantee right

Relationship of international law and municipal law — Treaties — American Convention on Human Rights, 1969 — Action to enforce right to hearing — Whether provisions of Convention directly applicable

Treaties — Effect in municipal law — American Convention on Human Rights, 1969 — Ratification by Argentina — Whether prevailing over conflicting municipal legislation — Whether rights enforceable in absence of municipal legislation to give effect to rights under Convention — The law of Argentina