Erin Patterson's conviction for the deaths by poisoning of her estranged husband's relatives has prompted fevered speculation across Australia about her motive.

The Supreme Court has revealed the jury was accidentally sequestered in the same hotel as a key police witness and two members of the prosecution's team for the majority of the deliberations.

The 50-year-old's in-laws died in 2023 after eating beef Wellingtons prepared by Patterson - they were later found to contain toxic mushrooms.