Erin Patterson, the Victorian woman convicted of murdering three relatives of her estranged husband with a poisoned beef wellington lunch, has begun a Court of Appeal challenge to overturn her convictions, while prosecutors separately argue her life sentence is too lenient. Three judges of Victoria's highest court are hearing both appeals together, with proceedings scheduled to run over two days.
A jury previously found Patterson guilty of murdering Don and Gail Patterson, her estranged husband's parents, along with his aunt Heather Wilkinson. She was also convicted of the attempted murder of Heather's husband, Ian Wilkinson, who survived the meal after weeks of hospital treatment. Patterson was handed a life sentence with a non-parole period of 33 years last September.
When and where is the appeal being heard?
According to the Supreme Court of Victoria's hearing schedule, the appeal opened on 19 August 2026 and is set to continue for a second day on 20 August 2026. The court had planned to broadcast the hearing publicly via livestream from Court 1 at 210 William Street in Melbourne.
Who is deciding the case, and how is Patterson taking part?
The panel hearing the matter consists of Justice McLeish, Justice Taylor and Justice Kidd, per the same court listing. Rather than appearing in the courtroom, Patterson is expected to follow proceedings from prison via video link, as reported by the national broadcaster's explainer on the case.
What are the two sides arguing?
Patterson is seeking to have her convictions quashed, while the state's director of public prosecutions is appealing on the grounds that her sentence does not adequately reflect the gravity of her crimes. Reporting from the Straits Times indicates Patterson's legal team will contend that errors during the original trial amounted to a miscarriage of justice, while prosecutors maintain the 33-year non-parole period set is too soft given the scale of the offending. The same broadcaster explainer cited above notes the appeal is likely to focus on evidence relating to mushrooms that was excluded during the trial, and that a retrial could be ordered should Patterson's challenge succeed.
How long has this appeal been in the pipeline?
Patterson signalled her intention to challenge the verdict almost a year before the hearing date was locked in, according to the broadcaster's reporting. A wire report from international news agency coverage published in May confirmed that the Supreme Court of Victoria had already fixed the hearing for 19 and 20 August 2026 well in advance.
What happens next?
The hearing is due to conclude on 20 August 2026, after which the three-judge panel will need time to deliberate before ruling on whether Patterson's convictions or her sentence should be altered. The broadcaster's explainer cautions that a decision is unlikely to be announced immediately once the two days of argument wrap up.
Key Facts
- Patterson was convicted of murdering Don Patterson, Gail Patterson and Heather Wilkinson, and of the attempted murder of Ian Wilkinson.
- She received a life sentence with a 33-year non-parole period in September of the previous year.
- The appeal opened on 19 August 2026 before Justices McLeish, Taylor and Kidd and is scheduled to run two days.
- Patterson is following the hearing by video link from prison rather than attending in person.
- A ruling is not expected immediately after the hearing concludes.
