For its size, Nauru has a complex legal system. The Supreme Court, headed by the Chief Justice of Nauru, is paramount on constitutional issues, but other cases can be appealed to the two-judge Appellate Court. Parliament cannot overturn court decisions, but Appellate Court rulings can be appealed to Australia's High Court; in practice, however, this rarely happens. Lower courts consist of the District Court and the Family Court, both of which are headed by a Resident Magistrate, who also is the Registrar of the Supreme Court. Finally, there also are two quasi-courts--the Public Service Appeal Board and the Police Appeal Board--both of which are presided over by the Chief Justice.

There are no armed forces, although there is a small police force (less than 100 members) under civilian control.

Nauru does not currently have an embassy in the United States but does have a UN Mission at 800 2d Ave, Suite 400D, New York, New York 10017 (tel: 212-937-0074, fax: 212-937-0079).