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Peter Duncan

b. 1945

Politician and lawyer in South Australia (born 1945)

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About Peter Duncan

Born 1945. Peter Duncan is an Australian politician and lawyer.

Peter Duncan (born ) is an Australian politician and businessman who has represented the Australian Labor Party in both state and federal politics. He served as a member of the South Australian parliament from 1973 to 1984, and as a member of the federal parliament from 1984 to 1996. He is one of relatively few members of parliament to have served not only in both a state and national parliament, but also as a minister in both cases.

Early life and education Peter Duncan was born in

In state parliament, Duncan served as 41st Attorney-General of South Australia from 1975 until 1979, and then as Minister for Health until the defeat of the Corcoran Labor government at the 1979 state election. He resigned from state politics in 1984, sparking an Elizabeth by-election.

Duncan was Minister for Land Transport and Infrastructure Support (1987–88) and Minister for Employment and Education Services for over three years from 1988 to 1990. After leaving the ministry in 1990, he became Parliamentary Secretary to the Attorney-General in December 1991, a post he held until Labor lost office in 1996.

Business Duncan had a business career after politics, which became a source of controversy when he was charged in September 2007 with "making an untrue statement in application for a Commonwealth grant and with dishonestly causing loss to a Commonwealth entity". It was reported that this had occurred in the wake of the failure of his plastic recycling business Omnipol. He was subsequently ordered to stand trial on three counts in the South Australian District Court. Duncan went on trial on 3 November 2008, pleading not guilty. On 11 November, he was acquitted on all charges.

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Important facts

Birth century
Occupation
Nationality
Education
University of Adelaide
Positions held
Member of the South Australian House of Assembly, Member of the Australian House of Representatives, Attorney-General of South Australia, Minister of Prices and Consumer Affairs
Also known as
Peter John Keith Duncan, Peter Duncan (South Australian politician), Peter Duncan (Australian politician), Peter Duncan (politician)

Contemporaries

People whose lives overlapped Peter Duncan's

Frequently asked questions

Who is Peter Duncan?

politician and lawyer in South Australia (born 1945)

When was Peter Duncan born?

Peter Duncan was born on 1 January 1945 in Melbourne.

What is Peter Duncan's occupation?

Peter Duncan is a politician and lawyer.

What nationality is Peter Duncan?

Peter Duncan is Australian.

Sources & further reading

· Wikipedia: Peter Duncan

· Wikidata: Q7173764

· DBpedia: Peter Duncan (Australian politician)

Cite this page

APA: Biography.guide. (2026). Peter Duncan. https://biography.guide/peter-duncan-politician/

MLA: "Peter Duncan." Biography.guide, https://biography.guide/peter-duncan-politician/.

Chicago: "Peter Duncan." Biography.guide. https://biography.guide/peter-duncan-politician/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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