The list of Western Australia state by-elections includes every by-election held in the Australian state of Western Australia. By-elections occur whenever there is a vacancy in the Legislative Assembly (or, historically, the Legislative Council), although an imminent state election may allow the vacancy to remain until the dissolution of parliament. Section 67 of the Electoral Act 1907 requires the Speaker to issue a writ for a by-election to fill the vacancy. This can either take place after a resolution of the House if Parliament is in session, or simply upon the cause being established by the Speaker acting alone if the Parliament is in adjournment for more than 7 days. Causes A by-election occurs whenever there is a vacancy in the Legislative Assembly. Vacancies can occur for the following reasons, according to Section 38 of the Constitution Acts Amendment Act 1899. The member: Is no longer eligible to sit—for example, leaving the State. This historically occurred more frequently when times were less economically stable, and people would move to another state or country where they could work or conduct business. Has been convicted for an offence for which the penalty was imprisonment for life, or for more than five years (Section 32). This last happened to John Marquis Hopkins when he was convicted for fraud in 1910, necessitating a by-election in his seat of Beverley. Becomes an undischarged bankrupt. This last happened in 1936 when Independent candidate Thomas Hughes won East Perth against the incumbent member in the 1936 election. However it was found that he was an undischarged bankrupt at the time of the nomination and poll (although had since resolved his affairs), and the election was declared void. He won the resulting by-election. Is elected to either the Federal Parliament or the parliament of another state or territory (Section 34). In practice, this is never necessary, as the other Parliament usually requires resignation from the Western Australian parliament in order to nominate as a candidate. This last occurred in the Legislative Assembly in 2001 when Hendy Cowan, the member for Merredin, resigned to unsuccessfully contest a seat in the Australian Senate. Is appointed as a judge or magistrate in a Western Australian court or as a chairman (or in some cases member) of another state board or tribunal (Section 34). This provision has never been acted upon, although numerous members have resigned over time to take up such