This is an introductory module in Public International Law. The broad aim is to introduce students who have not studied international law before to its core principles, including methodology, sources and techniques of legal reasoning. Topics covered include: The nature and purpose of international law; subjects of international law; state jurisdiction and immunity, including diplomatic immunity and jurisdiction in criminal matters; the law of treaties; the law of the sea; implementation and enforcement; international law and the individual; state responsibility; state succession, the law of international organizations including United Nations Law; the settlement of disputes; international law and national legal systems especially the municipal law of the United Kingdom.