Disputes concerning the interpretation and observance of the constitution and rules of a political party registered under federal and state electoral legislation are justiciable by the courts, notwithstanding Cameron v Hogan. The statutory recognition of political parties in the Commonwealth Electoral Act 1918 and the Electoral Act 1985 (SA) distinguishes registered political parties from mere voluntary associations. Retrospective amendments to the rules of a voluntary association that affect existing rights are unconstitutional under the association's own constitution.
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