Erin Patterson appeal: Mushroom murderer's trial undermined by hotel mix-up, court told - BBC News

Erin Patterson's defence team appeal against her conviction for killing relatives with a beef Wellington laced with toxic mushrooms.

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Watch: 'Catastrophic' hotel mix-up at the heart of Australia's mushroom murderer appeal

Lawyers for Australian mushroom murderer Erin Patterson say her conviction was undermined by a "catastrophic" mix-up that led to the jury staying at the same hotel as prosecutors and a key witness.

Patterson is serving a life sentence after killing three of her relatives and trying to kill another by serving them a beef Wellington containing death cap mushrooms at her Victoria home in 2023.

Her lawyers also argued some evidence in the trial was too speculative, while evidence crucial to their own case was wrongfully excluded.