1989 Merthyr state by-election

The 1989 Merthyr state by-election was a by-election held on 13 May 1989 for the Queensland Legislative Assembly seat of Merthyr, based in the inner Brisbane suburb of New Farm.

The by-election was triggered by the resignation of National MP and former minister Don Lane on 20 January 1989. Lane, who had been a member of the Liberal Party until shortly after the 1983 election, had admitted that he had misappropriated funds during his time as a minister in Sir Joh Bjelke-Petersen's government, which was being investigated by the Fitzgerald Inquiry. Furthermore, he implicated 14 other serving or former ministers in these activities. The media, led by The Courier-Mail newspaper, questioned the morality of a confessed dishonest politician continuing a Parliamentary career at the expense of taxpayers. Upon his resignation, despite the Labor Party's opposition to any further entitlements, he collected a superannuation payout of A$535,000 and awaited charges from the inquiry's special prosecutor, Doug Drummond QC.

The by-election campaign was quite unusual, with a total of 10 candidates nominating. A local car salesperson, Betty Byrne Henderson, won National Party preselection and campaigned on the slogan "Send a Message to Canberra". However, most of the campaign's attention was on Queensland issues—in particular the daily revelations from the Fitzgerald Inquiry.