South Wales state electorate of Penrith. The by-election was won by the Liberal Party candidate Stuart Ayres with a record swing of 25.7% in two party preferred terms. The by-election was triggered by the resignation of Karyn Paluzzano after an admission that she lied to the Independent Commission Against Corruption and her subsequent expulsion from the Australian Labor Party. 24 June – Following a leadership spill, Julia Gillard replaces Kevin Rudd as leader of the Federal Australian Labor Party and hence Prime Minister of Australia. Gillard is the 27th Prime Minister and the first female appointed to that role. 26 June – The bodies of eleven people, including six board members of the Australian mining company Sundance Resources who were killed in a plane that crashed in West Africa, are recovered. 29 June – Jayant Patel is found guilty on three counts of manslaughter and one count of grievous bodily harm for his actions as Director of Surgery at Bundaberg Base Hospital between 2003 and 2005. 29 June – The Victorian government officially proclaims the creation of four new National Parks, based around the River Red Gum forests in the state's north—Barmah National Park, Gunbower National Park, Lower Goulburn River National Park and Warby-Ovens National Park. July 2 July – Prime Minister Julia Gillard announces major changes to the Federal Government's proposed Resource Super Profits Tax, now known as the Mineral Resource Rent Tax, including a reduction in the headline rate to 30%. 19 July – 250 Australian and British WWI soldiers are laid to rest in a new Fromelles (Pheasant Wood) Military Cemetery in Fromelles, France. This is the first full cemetery that the Commonwealth War Graves Commission has constructed in more than 50 years. 31 July – A tornado hits the town of Penola, South Australia. August 6 August – The High Court of Australia rules in the case Rowe & Anor v Electoral Commissioner & Anor that certain provisions of the Commonwealth Electoral Act 1918 are invalid, specifically those introduced in the Electoral and Referendum Amendment (Electoral Integrity and Other Measures) Act 2006, which close the electoral roll on the day the writ for a federal election is issued. An estimated 100,000 enrolments were being reconsidered by the Australian Electoral Commission, and would be contacted to inform them they would be eligible to vote in the 2010 election. 21 August – The 2010 federal election is held.