International criminal law — Jurisdiction — Principle of universality — Crimes against humanity — Whether crimes of universal jurisdiction

Jurisdiction — Universal — Crimes against humanity — United Nations General Assembly Resolution 3074 of 1973 — Whether now recognized as enshrining rule of customary international law on universal jurisdiction over such crimes — Conditions for establishment of rules of customary international law

Relationship of municipal law and international law — Treaties — Crimes against international law — Convention against Torture and other Inhuman or Degrading Treatment, 1984 — Articles 4 and 5 — Provisions on jurisdiction of municipal courts — Whether automatically incorporated into municipal legal order or requiring specific implementing legislation — Conditions for direct applicability of treaty provisions — The law of Luxembourg