The University of Western Australia has taken out the Jessup Cup after competing against The Australian National University (ANU) in the finals of the Jessup International Law Moot Court Competition.
Both teams will travel to Washington DC in late March to compete in the international rounds.
Earlier this month, 16 teams took part in the national rounds at the ANU College of Law in Canberra, with the finals held at the High Court of Australia.
Competing to show who had the best understanding of international law and supreme skills of persuasion, students presented oral and written arguments on a hypothetical international law case to a simulated International Court of Justice.
The topic this year was "The right to self-determination and the lawfulness of measures taken to protect the economic resources of a state".
Competition organiser Dr Hitoshi Nasu from ANU's College of Law said in a statement: "This competition is a place for law students to hone their ability to research and mount a case very quickly - skills that they'll need when they graduate and become practising lawyers."
Students had to demonstrate their sharp presentation skills at the College of Law during preliminary rounds, before moving to real courts for the competition finals and the High Court of Australia for the grand final.