Salim Mehajer has been convicted of multiple counts of electoral fraud, just one week after emerging from a three-month stint in Silverwater jail for unrelated charges of perverting the course of justice and conspiring to cheat or defraud.
Local Court magistrate Beverley Schurr has found that the former Auburn deputy mayor engaged in a "joint criminal enterprise" with his sister Fatima to rig the September 2012 local government election.
The charges which saw him imprisoned stemmed from an alleged car crash in October last year, which prevented him from a court appearance relating to assault charges.
His sister also ran for election in Auburn 2012. She pleaded guilty on the first day of the trial for 77 counts of giving false or misleading information to the Australian Electoral Commission, with her sentencing delayed until his trial on more than 100 counts of electoral fraud.
The court heard that suspicion was raised at the Electoral Commission when an "unusually large number" of online enrolments for voters were lodged just before the electoral roll closed in July 2012 ahead of the Auburn election.
"Saved images of receipt numbers" were allegedly found on Ms Mehajer's computer for some of these applications, with the forms submitted from IP addresses associated with the family.