Extradition — Limitations — Offences carrying the death penalty in the requesting State — European Convention on Extradition, 1957, Article 11 — Whether declaratory of customary international law — Conflict with provisions of Extradition Treaty, 1870, between France and Italy

Relationship of international law and municipal law — Treaties — Whether municipal legislation implementing treaty provision is subject to scrutiny to determine compatibility with Constitution — Provisional application of treaty — Effect in municipal law

Treaties — Effect in municipal law — Compatibility with Constitution — Effect of treaty not yet in force but subject to provisional application — The law of Italy