Section 75: Original jurisdiction of High Court

In all matters:

1. arising under any treaty;

2. affecting consuls or other representatives of other countries;

3. in which the Commonwealth, or a person suing or being sued on behalf of the Commonwealth, is a party;

4. between States, or between residents of different States, or between a State and a resident of another State;

5. 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.