Peter Duncan (born 1 January 1945) is an Australian Labor Party politician and one of the 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.
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'.[3] It was reported that this had occurred in the wake of the failure of his plastic recycling business Omnipol.[4] He was subsequently ordered to stand trial on three counts in the South Australian District Court.[5] Duncan went on trial on 3 November 2008, pleading not guilty.[6] On 11 November, he was acquitted on all charges.[7]