Erin Patterson's lawyers are appealing her conviction for triple murder by arguing that the jury was not properly sequestered during her trial. The lawyers claim that members of the jury stayed in a hotel with witnesses and prosecution members, potentially compromising the fairness of the trial. No evidence suggests that the jury communicated with others, but the lawyers argue this still represents a "fundamental failure" of the legal process. Patterson was sentenced to life imprisonment, eligible for parole after 33 years, and is now appealing her conviction in Melbourne's Supreme Court.
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Erin Patterson, a 51-year-old Australian woman, is appealing her conviction for murdering three relatives and attempting to kill another by serving them a meal containing death cap mushrooms. She was found guilty in July last year of killing her husband's parents, Don and Gail Patterson, and his aunt Heather Wilkinson, at her home in Leongatha, Victoria, and sentenced to life in prison with the possibility of parole after 33 years. Patterson's lawyers argue that the jury sequestration was fundamentally flawed because jurors were housed in the same hotel as the police and media, which could have influenced their verdict. The prosecution is also appealing against the sentence, arguing that a 33-year parole period is "manifestly inadequate" given the severity of the crimes. In a separate challenge, Crown prosecutors are urging the court to reject Patterson's appeal, stating that her crimes were "truly dreadful" and that she should never be allowed to leave prison. The Court of Appeal in Melbourne will reserve its decisions on both appeals, meaning it could take weeks or months before the outcome is known.
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Leaning score +0.35 for article 1312 (medium confidence, 1 verified quote) · logged 2026-08-21
Patterson was found guilty last year of murdering her husband's parents and an elderly aunt in 2023 by serving them a beef Wellington lunch laced with lethal death cap mushrooms.
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Patterson → find → mushrooms
Australian mushroom killer Erin Patterson's lawyers said on Wednesday the jury was not properly sequestered in her trial as they sought to overturn her conviction in a triple-murder case that sparked a worldwide media frenzy.
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that → say → frenzy
The 51-year-old was found guilty last year of murdering her husband's parents and an elderly aunt in 2023 by serving them a beef Wellington lunch laced with lethal death cap mushrooms.
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old → find → mushrooms
Patterson was also convicted of the attempted murder of her husband's uncle, a small-town local pastor who survived the beef-and-pastry dish after weeks in hospital.
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who → convict → hospital
A judge sentenced her to life imprisonment, eligible for parole after 33 years.
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judge → sentence → years
Three judges are hearing two appeals on Wednesday and Thursday: Patterson's attempt to overturn her conviction and the prosecution's demand for a stiffer sentence.
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judges → hear → sentence
Patterson watched the proceedings at Melbourne's Supreme Court via a live video link from her maximum-security prison, the Dame Phyllis Frost Centre, in Melbourne's western suburbs.
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Patterson → watch → suburbs
Her lawyer, Richard Edney, argued that the fact that members of the jury had stayed in the same hotel as a witness for the police, as well as members of the prosecution, undermined the fairness of the trial.
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members → argue → trial
He said it represented a "fundamental failure" of the legal process "in perhaps one of the most high-profile criminal trials this state has ever had."
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state → say → trials
But he conceded there was no evidence to suggest the jury had communicated with others.
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jury → concede → others
Patterson's other lawyer, Veronika Drago, argued that some evidence allowed by the judge, relating to cell towers and posts of death cap mushroom sightings, had been "innocuous" and unreliable.
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evidence → argue → sightings
That she was forced to answer questions based on this evidence "arises to the level of a substantial miscarriage of justice," Drago said.
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Drago → force → justice
Other evidence about mushroom images on a memory card in Patterson's home was wrongly excluded, the lawyer said in an appeal submission in November last year.
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lawyer → exclude → November
Patterson's solicitor additionally accused the prosecution of an "unfair and oppressive" cross-examination during the trial.
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solicitor → accuse → trial
Before listening to the arguments in detail, the Court of Appeal judges must decide whether the grounds justify granting Patterson leave to challenge her conviction at all.
On the other side, the prosecution has appealed against Patterson's sentence, saying the non-parole period of 33 years imposed by the judge was "manifestly inadequate."
The judge erred in finding there was a substantial chance Patterson would be held in solitary confinement for years to come and this "infected" his decision, the prosecution argued.
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prosecution → listen → decision
A 12-person jury found Patterson guilty in July last year of murdering her husband Simon's parents, Don and Gail Patterson, as well as his aunt, Heather Wilkinson, at her home in the Victorian farming village of Leongatha.
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Patterson → find → Leongatha
She was also found guilty of attempting to murder Heather's husband Ian, a pastor who fell gravely ill but eventually recovered.
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who → find → husband
