Original jurisdiction of High Court.

In all matters— (i.) Arising under any treaty: (ii.) Affecting consuls or other representatives of other countries: (iii.) In which the Commonwealth, or a person suing or being sued on behalf of the Commonwealth, is a party: (iv.) Between States, or between residents of different States, or between a State and a resident of another State: (v.) In which a writ of Mandamus or prohibition or an injunction is sought against an officer of the Commonwealth: the High Court shall have original jurisdiction.