Opening statements from both the prosecution, led by Dr. Nanette Rogers, and the defense, represented by Colin Mandy SC, will be presented before evidence is introduced.

Justice Beale instructed jurors to remain impartial, avoid media influence, and base their decisions solely on the evidence presented in court.

Experts have warned that just 50 grams of the death cap mushroom can be lethal, with symptoms often appearing too late for effective treatment.

The trial of Erin Patterson, who is accused of murdering three elderly guests with poisonous mushrooms, commenced on April 29, 2025, in Leongatha, Australia.

The victims included Don Patterson, 70, Gail Patterson, 70, and Heather Wilkinson, 66, who all died after the gathering, while Ian Wilkinson, 68, survived after extensive treatment.

Patterson has pleaded not guilty to all charges and continues to assert her innocence as the proceedings unfold.

The incident that led to the trial occurred nearly two years ago during a lunch gathering, resulting in the deaths of Don and Gail Patterson and the hospitalization of Ian Wilkinson.

The case has garnered significant media attention, with limited courtroom seating allocated through a daily ballot and additional viewing options in an overflow room.

Public attendance is allowed, but only six reporters can be present in the courtroom each day, while others will observe from the overflow area.

State broadcaster ABC is producing a daily podcast titled 'Mushroom Case Daily' about the trial, which is expected to last five to six weeks.

Justice Christopher Beale is presiding over the trial, which is anticipated to last approximately six weeks.

Prosecutors have dropped three attempted murder charges against Patterson related to her estranged husband, Simon, but charges concerning the other family members remain.