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Prosecutors say evidence showed Erin Patterson’s mushroom poisoning was deliberate

Australian prosecutors have told a court that the evidence against Erin Patterson pointed to a deliberate poisoning, as the high-profile case over three deat...

By Elena Vance
August 19, 20262 min read
Prosecutors say evidence showed Erin Patterson’s mushroom poisoning was deliberate
Prosecutors say evidence showed Erin Patterson’s mushroom poisoning was deliberate

Australian prosecutors have told a court that the evidence against Erin Patterson pointed to a deliberate poisoning, as the high-profile case over three deaths and one attempted murder moved into a two-day appeal hearing on Wednesday.

Patterson is serving a life sentence after being found guilty last year of murdering three relatives and attempting to murder a fourth by serving a beef Wellington laced with death cap mushrooms at a lunch in 2023. Her legal team opened the appeal by challenging the conviction, including claims the verdicts were tainted by what they described as a “catastrophic” jury accommodation arrangement.

Prosecutors push back

The Office of Public Prosecutions rejected that argument in court documents released on Wednesday, saying the guilty verdicts were inevitable. The prosecution said the surrounding circumstances — the lunch invitation, the fact Patterson’s meal was served on a different plate, the sharply different medical outcomes between Patterson and her guests, and other evidence presented at trial — pointed to a planned act.

Short. Direct. Deliberate.

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The appeal hearing is underway in Australia, where the case has drawn intense public attention because of the unusual nature of the crime and the slow, grim legal process that followed. Death cap mushrooms are among the world’s most toxic fungi, and the case has already become one of the country’s most closely watched criminal matters.

What happens next

The hearing is scheduled to continue tomorrow, when prosecutors are expected to set out their own challenge to Patterson’s eligibility for parole. That will add another layer to an already tightly watched appeal, with both sides now pressing arguments that could shape the next stage of the case.

Patterson was convicted in Morwell last year of three counts of murder and one count of attempted murder. The appeal court will now have to weigh whether the trial was fair and whether any of the issues raised by the defence were serious enough to unsettle the verdicts. The next session will bring the parole question into sharper focus.

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