by the monarch. The judiciary is headed by a Chief Justice. The current Chief Justice is Michael Hargreaves Whitten. Administrative divisions Tonga is divided in three island groups; Ha'apai, Tongatapu, Vava'u. The only form of local government is through town and district officials who have been popularly elected since 1965. The town official represents the central government in the villages, the district official has authority over a group of villages. See also Electoral calendar Electoral system Lists of political parties 2006 Tonga riots References External links Adam Carr's Election Archive Political parties in Tonga