The Victorian Court of Appeal in Melbourne has ruled that Erin Patterson, who killed her relatives by poisoning them with death cap mushrooms, must remain incarcerated for life.

Patterson, 51, received a life sentence in 2024 after she served her family a beef Wellington laced with the deadly fungus. Prosecutors describe the act as a betrayal of trust, noting that Patterson planned the poisoning months in advance and deceived her guests into believing she was suffering from cancer.

Although the 33‑year minimum term was deemed the minimum for a life sentence, Crown prosecutors argue that it is “manifestly inadequate” given the severity of the crime. They demand that the appeal court increase the minimum term or keep her jailed indefinitely, citing the ongoing risks posed by her presence.

Patterson’s legal team, meanwhile, has challenged the conviction, claiming a procedural error during the 2023 trial. They argue that the jury stayed at a hotel where prosecutors and key witnesses also lodged, potentially influencing the verdict.

The court is expected to take several weeks or months to decide on both appeals. If the judges uphold Patterson’s conviction but reject the request to extend her sentence, she will remain in solitary confinement until she is 84, with no prospect of release.