Erin Patterson mushroom murder trial LIVE updates: Jury hears Patterson should have suffered ‘adverse outcome’

Erin Patterson claims she ate only half of a beef Wellington laced with death cap mushrooms at her deadly lunch.

Patterson made the claim to hospital staff and a child protection officer in the days following the lunch that claimed the lives of her in-laws Don and Gail Patterson, and Gail’s sister, Heather Wilkinson.

The jury has already heard Gail Patterson ate just half of her pastie-sized beef Wellington, with her husband finishing off the rest.

Unlike Patterson, the portion was enough to make Gail violently ill within hours and eventually killed her.

On Friday, Dr Dimitri Gerostamoulos, head of forensic science at the Victorian Institute of Forensic Medicine, suggested Patterson’s portion should have caused an ‘adverse outcome’ for her.

Patterson’s trial has been adjourned for the lunch break and will resume at 2.15pm.

Telecommunications expert Dr Matthew Sorell will resume giving evidence after lunch.

A telecommunications expert is the latest witness to give evidence.

Dr Matthew Sorell is the principal of Digital Forensic Services Australia, an Adelaide-based private company which provides legal evidence on telecommunications to courts.

The court heard Dr Sorell had been involved in about 400 court cases across Australia, mostly for the prosecution.

Dr Sorell is explaining to the jury how he can determine the location from where phone calls have been made, in relation to mobile network base stations.

He has already mentioned base stations at Korumburra, Arawata, Holmes Hill and Loch South.

Defence lawyer Sophie Stafford suggested Ms McKenzie removed the death caps because she feared someone would mistake them for edible mushrooms.

Ms McKenzie agreed. The jury heard even though she was concerned they could grow back, she did not return to the site.

Ms McKenzie said she attempted to remove death cap mushrooms in the Victorian town, Loch.

The jury heard she was able to identify the mushrooms because of her training, and that she was keen to remove them for safety reasons.

Prosecutor Jane Warren asked if more mushrooms could have grown in the area. Ms McKenzie agreed.

Christine McKenzie (pictured below), a former senior poisons information specialist at the Victorian Poisons Information Centre, was the first witness to be called on.

She explained death cap mushrooms usually grow between March and May in Victora. Several factors have to be right, including the temperature and moisture.

Patterson will face her fourth week of a Supreme Court trial on Monday.

Patterson has pleaded not guilty to killing her three lunch guests and the attempted murder of Pastor Ian Wilkinson – the lone survivor of the deadly lunch.