Erin Patterson, an Australian convicted of triple murder, appealed her convictions on Wednesday. She faced charges for poisoning four relatives of her estranged husband with death cap mushrooms. Her appeal is being heard by three judges from the Victoria state Court of Appeal over two days. The charges include three counts of murder and one of attempted murder related to a lunch she prepared in July 2023. The lunch took place at her rural home in Leongatha, southeast Australia, and featured beef Wellington pastries.
Patterson was found guilty last July after a nine-week trial that captured national attention. Prosecutors are also appealing her sentence, arguing it was too lenient. She was sentenced to life in prison in September of the previous year. She must serve at least 33 years before being eligible for parole. Prosecutors intend to argue that she should receive a life sentence without parole, according to prosecutor Brendan Kissane.
During the appeal, Patterson’s defense attorney, Richard Edney, highlighted an issue involving jury sequestration. He claimed that jurors were housed in the same hotel as a police witness and prosecution team members, calling it a “serious breach of sequestration.” Kissane countered that there was no evidence of interaction between jurors and other individuals.
Another defense lawyer, Veronika Drago, refuted claims that Patterson had prior knowledge of death cap mushrooms in the vicinity of Outtrim and Loch. Although a telecommunications expert testified about Patterson’s phone activity in that area, Drago argued that this alone did not constitute definitive evidence.
Defense lawyers also criticized the cross-examination conducted by prosecutor Nanette Rogers, labeling it “unfair and oppressive.” They argued that the trial judge allowed potentially prejudicial Facebook evidence against Patterson.
Patterson’s estranged husband, Simon Patterson, missed the fatal lunch but suspected she had made him ill with food before. The victims included Simon Patterson’s parents, Don and Gail Patterson, and Gail’s sister, Heather Wilkinson. Heather’s husband, Ian Wilkinson, survived after an extended hospital stay. Erin Patterson maintained during the trial that the incident was accidental.
Defense attorney Drago contended a miscarriage of justice occurred when the prosecution opened with a lack of motive but later implied animosity towards the Patterson family. When questioned by Justice Lesley Taylor, Drago clarified that they were not accusing prosecutors of misconduct, but pointed out inconsistencies in the prosecution’s case.
If Patterson’s appeal proves successful, the judges may overturn her convictions and possibly order a retrial. She attended the hearing via video from prison rather than in person.
In earlier testimony, Simon Patterson suspected his wife of previous attempts on his life, but no poisons were found. Charges against Erin Patterson for attempting to murder her husband were dropped before her trial commenced in April 2025.
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