seat until the 2001 election. Labor's Mick Murray, head of the Country Labor grouping in Western Australia, gained the seat on his third attempt with a margin of just 34 votes. In the 2003 redistribution, the seat was renamed Collie-Wellington when it lost its southern and eastern sections and incorporated large sections of Waroona and Harvey which had been part of Murray-Wellington. The 2007 redistribution renamed the seat Collie-Preston and largely reversed the 2003 redistribution, but adding the coastal section of the Shire of Capel which brought in residents on the fringes of metropolitan Bunbury. This slashed Murray's margin from a fairly safe 9.3 percent to an extremely marginal 0.8 percent. Mick Murray retained the seat at the 2005, 2008 and 2013 elections. A redistribution ahead of the 2017 election saw Collie-Preston gain Donnybrook-Balingup Shire from Warren-Blackwood and Clifton Park from Bunbury while it lost Dalyellup to Bunbury. This erased Murray's paper-thin majority of 0.1 percent and made Collie-Preston notionally Liberal, on a margin of 2.9 percent. However, Murray retained the seat on a massive swing of 17.6 percent. Murray retired in 2021, and Jodie Hanns easily retained the seat for Labor. She now sits on a margin of 23.4 percent, Labor's safest outside the Perth-Mandurah axis. Geography Collie-Preston presently includes the Shires of Collie, Capel, Donnybrook-Balingup and Dardanup. It includes the Bunbury suburbs of Eaton and Millbridge, the towns of Balingup, Boyanup, Burekup, Capel] which includes the suburb of Dalyellup Collie, Dardanup, Donnybrook and Kirup. The seat has changed many times through its history. In the 1950s, the seat was limited to the region around Collie itself and mining areas within the Shire of West Arthur. By 1968, the seat consisted of the Shires of Collie, Donnybrook-Balingup and Boyup Brook districts, and from 1976 to 1982 also included Dardanup. The 1988 redistribution added Boddington from the abolished Dale, as well as the Greenbushes district from Warren. The 1994 redistribution added Dardanup and eastern Capel, including Boyanup but excluding Eaton and the coastal regions. Ahead of the state election, only Collie and Dardanup were retained, with the seat gaining Waroona and most of Harvey (excluding Australind and other urban districts which were part of Leschenault). The 2007 redistribution, which took effect at the 2008 election, brought back Dardanup and Donnybrook-Balingup, but also added Capel from the abolished Capel district, and the Bunbury suburb of Eaton from the abolished Leschenault. This