The woman under investigation for her potential involvement in the death of three family members following a toxic death cap mushroom scandal has had multiple run-ins with the law, it has been revealed.

On July 29, Erin Patterson cooked a beef wellington lunch at her home in Victoria for her former in-laws Don and Gail Patterson, along with Gail’s sister Heather Wilkinson and her husband Ian Wilkinson.

However, the lunch turned deadly when Don, Gail and Heather all died after eating the meal, which allegedly contained death cap mushrooms.

Now, it has been revealed Patterson, 49, was convicted of five charges in 2004, including a drunken high-speed rampage behind the wheel of an unregistered car, The Australian reported.

Patterson, known as Erin Trudi Scutter back then, lost her licence for 30 months after crashing her vehicle in Melbourne while heavily intoxicated, according to court records.

The Australian reported she evaded authorities by speeding away from the crashed scene, reaching speeds of just under 100km/h in a 60km/h zone.

After being caught, she underwent a breath test where her blood alcohol reading registered 0.14 per cent, indicating significant impairment.

According to news.com.au, her blood alcohol level at the time would warrant a 14-month driving ban today under high-range drink driving laws.

Patterson’s lawyer confirmed she does not have any interest in commenting on her past.

Patterson, who has denied any wrongdoing in relation to the mushroom incident, stated that her lawyer had advised against engaging with media inquiries.

”My lawyer has told me not to talk to you,” she told The Australian.

Erin Patterson has been under intense public scrutiny since the case first went public, but has denied deliberately poisoning her guests.

She recently spoke out to deny leaking her earlier statement to police and hit out at media coverage of the case.

“I lost my parents-in-law, my children lost their grandparents. And I’ve been painted as an evil witch,” Patterson told the Australian.

“And the media is making it impossible for me to live in this town. I can’t have friends over.

“The media is at the house where my children are at. The media are at my sister’s house, so I can’t go there. This is unfair.”

“I lost my parents-in-law, my children lost their grandparents. And I’ve been painted as an evil witch,” Patterson told The Australian.

While police have only said Erin Patterson is a person of interest, and haven’t suggested she tried intentionally poisoning her in-laws, experienced psychologist Tim Watson-Munro says there are a number of bizarre elements that need to be investigated.

Speaking to The Australian, Watson-Munro, who has worked on catching some of Australia’s biggest criminal offenders, stated: “I’m not a big believer in coincidences.”

‘Wilfully poisoned or just bad luck’

Simon Patterson spent 21 days in intensive care in 2022 after collapsing from a mystery stomach illness at his home, where his friends and family were told to come and say goodbye in case he died.

The Herald Sun reported a family friend said Simon felt “a bit off” and his illnesses “often coincided [with] when he spent time with her [Erin]”.

In a police statement regarding July’s deaths, Patterson also questioned herself as to whether she poisoned Simon’s parents and aunty.

“Obviously, he was either wilfully poisoned or it was just bad luck,” Watson-Munro told the The Australian.

Watson-Munro isn’t convinced by Patterson’s statement in which she claimed she purchased the mushrooms at an unnamed Asian supermarket.

In his view, he believes her claim sounds “ludicrous” because death cap mushrooms are not commercial products.

He said: “People just don’t retail them. It’s not that loose.”

Patterson revealed in a follow-up statement to police that her children were not present at the lunch, despite initial reports they were.

She claimed they were at the movies, but ate leftovers of the meal the following day.

While police have only said Erin Patterson is a person of interest, and haven’t suggested she tried intentionally poisoning her in-laws, experienced psychologist Tim Watson-Munro says there are a number of bizarre elements that need to be investigated.

Speaking to the Australian, Watson-Munro, who has worked on catching some of Australia’s biggest criminal offenders, stated: “I’m not a big believer in coincidences.”

Another controversial part of the case is the details surrounding the dumping of a food dehydrator.

A police statement by Patterson was reportedly leaked to the media, revealing she became unwell after eating the meal.

She admitted she then dumped a dehydrator she used to prepare the meal at a nearby tip soon afterwards because she was in a panic.

However, she admitted lying to police about how long ago she disposed of the food dehydrator.

She told them she dumped it there a “long time ago”, before revealing she did it after her guests fell ill.

She now claims she was at the hospital with her children “discussing the food dehydrator” when her estranged husband, Simon Patterson, asked: “Is that what you used to poison them?”

The investigation is continuing.