Fifteen jurors selected for triple mushroom murder trial

The people who will decide the fate of alleged poisonous mushroom cook Erin Patterson have been chosen for her trial.

Patterson, 50, has pleaded not guilty to three charges of murder and one of attempted murder, and elected for her Supreme Court trial to be held in the town of Morwell, about 150km southeast of Melbourne.

The trial has attracted significant national and international media interest, with dozens of journalists, documentary-makers, true crime writers and podcasters flooding the small town.

Patterson was accused of killing her former in-laws, Don and Gail Patterson, and Gail's sister Heather Wilkinson.

They all became sick and died in hospital days after consuming a meal at Patterson's Leongatha home in July 2023.

Wilkinson's husband Ian, for whom Patterson was charged with attempted murder, also became ill after the lunch but survived.

Fifteen jurors from the Gippsland region were selected for the trial at Latrobe Valley court precinct on Tuesday.

Justice Christopher Beale was expected to read the jury details of the charges and any directions they must keep in mind throughout the trial at 3pm on Tuesday.

The prosecution, led by Nanette Rogers SC, would deliver their opening address to the jury on Wednesday morning.

Patterson's barrister Colin Mandy SC would then deliver the defence's reply, before the first witness was expected to be called on Thursday.

Due to the high level of interest, only six seats inside the court room would be allocated to media each day of the trial with the rest given to members of the public.

The trial was expected to run for five to six weeks.