7NEWS can reveal for the first time evidence that was shown to the jury during Erin Patterson’s fatal mushroom lunch trial.

The 50-year-old was found guilty of killing three relatives and attempting to kill a fourth at a family lunch by serving up beef wellington with poisonous death cap mushrooms in 2023.

Following the jury’s guilty verdict on Monday, the court released several pieces of evidence that were shown to the jurors during the 10-week trial.

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It included CCTV of Patterson’s nine-second stop to a service station BP while reportedly suffering from diarrhoea.

The footage was captured the day after Patterson’s deadly lunch when she claimed to have been experiencing death cap mushroom poisoning symptoms, like her victims.

In the four-minute clip, Patterson can be seen walking into the toilet area at BP Caldermeade before coming out seconds later.

She then walks around the store, perusing the shelves, before buying a sandwich and lollies, then exiting to return to her car.

At the time, Patterson had been driving her son to a flying lesson in Tyabb — which was later cancelled as they neared their destination.

Patterson told the jury during her testimony that her she had to pull over during the drive to relieve her diarrhoea in bushland.

She said she then cleaned herself up with tissues, placed them into a dog poo bag, then disposed of them in the BP toilet during her “nine-second” stop.

Further CCTV was released showing Dr Veronica Foote from Leongatha Hospital examining the lunch leftovers.

Foote can be seen putting on gloves before taking the leftovers out of a Woolworths bag and putting them onto a white piece of paper.

She then appears to take photos of the leftovers on her phone.

The jury heard doctors had asked where the leftovers could be found after her four lunch guests became ill.

Patterson spoke over the phone to police officers as they went to her home, where they collected the leftovers from a bin outside.

The leftovers were then taken to Leongatha Hospital then transported to Melbourne for scientific testing.

Another piece of CCTV shows Patterson at the hospital in the days after the deadly lunch.

She can be seen trying to leave the hospital and talking to medical staff.

Patterson discharged herself from the hospital against medical advice, with another doctor, Dr Christopher Webster, calling her three times asking her to come back.