After serving Patrick Brown with a warning, Finance Minister Vic Fedeli is taking Brown to court.
Fedeli first threatened a lawsuit last month in response to sexual misconduct allegations in Brown's new memoir.
According to the book, a female staffer left a note on Brown's desk accusing Fedeli of sexually inappropriate behaviour.
Fedeli called the allegations false and demanded they be removed from the book which the publisher declined to do.
Fedeli is suing Brown for 8-million dollars for defamation