International law in general — Relation to municipal law — Whether international law part of municipal law — The law of South Africa

Jurisdiction — In general — Territorial jurisdiction — Irregular apprehension — Role of international law at trial of persons apprehended irregularly — Apprehension in foreign State — Distinction between apprehension by authorized and unauthorized persons — Unauthorized apprehension — Later formal arrest — Whether court has jurisdiction to try offender — The law of South Africa