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All 47 seats in the South Australian House of Assembly 24 seats were needed for a majority | ||||||||||||||||||||||||||||||||||
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State elections were held in South Australia on 30 May 1970. All 47 seats in the South Australian House of Assembly were up for election. The incumbent Liberal and Country League led by Premier of South Australia Steele Hall was defeated by the Australian Labor Party led by Leader of the Opposition Don Dunstan.