French court decides whether National Front mayor should be disqualified from office.

The High Court of Australia decision means three of the politicians, including Mr Joyce, are disqualified from office.

Late last year, two pro-independence lawmakers were disqualified from office after Beijing's parliament ruled their oath-taking carried digs at China.

Any councillor convicted of a crime that carries a maximum penalty of two years or more imprisonment is automatically disqualified from office.

Inquiries by the standards board can lead to locally elected officials being censured, suspended or in the most serious cases, disqualified from office.