A by-election was held in the state electoral district of Macquarie Fields on 3 November 1990. The by-election was triggered by the resignation of Stan Knowles (), who was facing minor shop lifting charges.
Dates Date Event 11 October 1990 Stan Knowles resigned. 12 October 1990 Writ of election issued by the Speaker of the Legislative Assembly and close of electoral rolls. 18 October 1990 Day of nomination 3 November 1990 Polling day 23 November 1990 Return of writ
Result
Stan Knowles () resigned.
See also Electoral results for the district of Macquarie Fields List of New South Wales state by-elections
References