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May 28, 2025 • 14 mins

Today, a jury heard about mushroom cook Erin Patterson's multiple phones – and how one was never found by police.

The Mushroom Cook team is Brooke Grebert-Craig, Laura Placella, Anthony Dowsley, Jordy Atkinson and Jonty Burton
Our intern is Jasmine Geddes.

The Mushroom Cook is a Herald Sun production for True Crime Australia.Go to themushroomcook.com.au for news, features, previous episodes and more

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Transcript

Episode Transcript

Available transcripts are automatically generated. Complete accuracy is not guaranteed.
Speaker 1 (00:00):
It's mid morning and Detective Leading Senior Constable Stephen Eppingstall
and his colleagues are at a house that sits on
a gravel road in the country town of lean Gatha.
They're here because it's Aaron Patterson's home and they have
a warrant to search it. While they're on site, Aaron
hends them a phone that they sees, but according to

(00:23):
the prosecution, there was another phone that police were never
able to find. How that phone fits into their case
is what the jury heard today in court. I'm Brook
Greenbert Craig, and this is the Mushroom Cook. It's day
twenty one of Aaron Patterson's murder trial and I'm here
again with my colleague, court reporter Laura PUSSELLA good to

(00:47):
be here. As you remember, yesterday Constable Eppingstall took to
the stand and today he continued his evidence. He answered
questions on many different topics. So let's start with the
most detailed, which is about two of Aaron's phones. They
have been called Phone A and Phone B in court today.

Speaker 2 (01:06):
That's right, and I almost feel like I need to
start this out with a disclaimer. This will be some
really dense evidence and it might be confusing for some
of our listeners, but we're going to try our hardest
to break it down, just like it was broken down
in court today by Constable epping Stall to quickly give
a summary of Phone A and Phone B. The jury
were told in the prosecution opening that Phone A was

(01:29):
never recovered by police, but Phone B was seized during
a search warrant executed at Aaron's house on August five,
a week after the lunch. But for now we'll just
start with Phone A. The court has heard that a
lot of phone records have been analyzed in this case,
and Constable epping Stall said today that four and a
half years of these records showed that Erin used a

(01:51):
SIM card ending in the digits seven eight to three
for a long time. He said, she used this SIM
card to communicate with people in her life, including her
children and her extranged husband Simon. These records were shown
to the jury today and the prosecution team almost had
to scroll through them because there were so many of them.

(02:12):
Constable epping Stall told the court that the record showed
that this simcard was placed into Phone A on February twelve,
twenty twenty three. If we fast forward he said, this
simcard remained in that phone until August five, and to
remind our listeners, this is the date of the first
search warrant which you heard about in the top of

(02:33):
the episode. When asked today about these records and what
they showed, Constable epping Stall said that on August five,
around one forty five pm, you could see the SIM
card change from Phone A into a completely different phone,
that being a Nokia. Yesterday he told the court that
during the search warrant, Miss Patterson was allowed to use

(02:54):
a phone in a room on her own without any observation.

Speaker 1 (02:59):
So Phone B is the Nokia then.

Speaker 2 (03:01):
No, so the Nokia is actually a third phone. It
hasn't been given a name, so we're just going to
call it the Nokia. Every time we're referring to Phone
A or Phone B. Will use those terms just like
they've used in court. Sounds good, so Constable Eppingstaal told
the court that now the simcard ending in seven eighty
three that was being regularly used by Erin was now

(03:23):
in this Nokia, and he said that according to the records,
there was ongoing usage of this simcard right up until
August fourteen, which is when the records they had obtained
had ended, but he said that months later, on November two,
another search warrant was executed at Aaron's house, and this
time they were looking for Phone A. He was asked

(03:44):
by Crown Prosecutor Jane Warren whether Phone A was ever found.
He said, it's never been located by police.

Speaker 1 (03:53):
Okay, So what you're saying, Laura, is that the record
show Phone A was used by Erin in twenty twenty
three to communicate with other people and it was never
found by police.

Speaker 2 (04:03):
That's right.

Speaker 1 (04:04):
Okay, Now let's move on to Phone B. What can
you tell me about that.

Speaker 2 (04:09):
Constable epping Stall confirmed that Phone B was the phone
that Erin handed to police on August five during the
search warrant. We touched on this in yesterday's episode because
a video was played to the jury of that exchange
between Erin and Detective Sergeant Luke Farrell she handed the
phone to him towards the end of the search warrant.

(04:30):
Constable Eppingstall was then asked questions about the checks he
completed on this phone once it was in his custody.
He said that the phone had a SIM card inside
ending an eight three five. This being a different simcard
from what we've mentioned earlier. He said the SIM card
had only been connected from July eleven that year and

(04:51):
had been used in a tablet up until August three.
He then referred back to the records and he said
that the SIM card was taken out of the tab
and placed into phone B on August three. And just
because we are referring to a lot of dates, August
three is five days after the lunch and two days
before the search warrant.

Speaker 1 (05:11):
Our listeners may remember that Digital forensic Officer Sharman fox
Henry from Victoria Police said Phone B was factory reset
several times in twenty twenty three.

Speaker 2 (05:23):
Yes, we have touched upon this topic in two episodes,
and we came back to it again today. Mister fox
Henry was asked about a report last week relating to
these factory resets, and he said the report showed that
Phone B was factory reset four times on February twelve,
August two, August five, and August six.

Speaker 1 (05:47):
Let's move on to more of his evidence. The jury
heard about Aaron's alleged medical appointments.

Speaker 2 (05:54):
They did and to take a step back, Constable epping
Stall explained to the jury how he obtained Erin's Medicare
records and was able to use them to determine where
and when she went to the doctor. After that process,
he said he secured warrants to obtain Erin's medical records
from three gps in Lee and Gathakaren, Burrough and Mount Waverley.

Speaker 1 (06:18):
Now the jury was showing entries from Gail Patterson's diary,
weren't they.

Speaker 2 (06:24):
Yes, And this was happening at the same time that
Constable eppings Store was being asked about the medical records.
And it will soon be made clear why that was
the case. In Gayle's diary, she wrote on June twenty eighth,
twenty twenty three, Erin dash Saint Vincent's arm lump, Saint
Vincent's being a reference to a hospital in Melbourne. The

(06:46):
jury were then shown messages between Gail and Erin from
a day later, on June twenty nine. These are their words,
but not their voices.

Speaker 3 (06:55):
Hi, Gail, Sorry, I had taken to see a movie
last night. We saw The Little Mermaid. The appointment went okay,
thanks for asking. I had a needle biopsy taken of
the lump and I'm returning for an MRI next week
and we'll know more about the results of those two things.

Speaker 4 (07:11):
That's the test of patience, isn't it, Praying you'll know
God's peace. We're just ready to relax after an enjoyable
time with Ethan and Alice. Nice to have the fire
warming us in this cold weather XO.

Speaker 2 (07:25):
After the text messages were shown to the jury, Constable
Epping's stare was asked whether or not he found any
evidence in Aaron's medical records that indicated she did have
a needle biopsy on June twenty eighth. He said he
could not find any evidence of that.

Speaker 1 (07:41):
The messages also continued on July.

Speaker 4 (07:44):
Six, Hi, Erin, how did you get on yesterday with
your medical tests? Love Don and Gail?

Speaker 1 (07:51):
And then the next day Erin replied.

Speaker 3 (07:54):
Thanks for your message, Don and Gail. There's a bit
to digest with everything that's come out of it all.
I might talk more about it with you both when
I see you in person, Love Erin.

Speaker 2 (08:03):
Constable epping Stall was again asked whether he had found
any evidence of these medical appointments in Erin's records. He
again said he had not, but the court her that
Erin did attend a medical appointment in late June for
ribsonness and twice in July to update a prescription now constable.

Speaker 1 (08:21):
Epping Stall was also asked questions about Aaron's medical history
by defense barrister Colin Mandy.

Speaker 2 (08:29):
Sc that's right. Under cross examination, the defense tended more
medical records relating to Erin from twenty twenty one. In particular,
in one of the records from October, a doctor writes
Aarin worries about ovary cancer. Has been googling her symptoms,
thinks her symptoms may be suggestive of ovary cancer. This

(08:51):
record states that an MRI and an ultrasound were booked
for the following month in November. Mister Mandy also showed
the jury another medical record which outlined Erin's family history,
and it stated that her paternal aunt and maternal aunt
had overy cancer. It has been a while since we've

(09:11):
spoken about cancer. But the prosecution has alleged that Erin
falsely claimed she had cancer to ensure and to explain
why her children were not present at the lunch on
July twenty nine. But the defense has suggested that Erin
only told the lunch guests she had a suspected diagnosis
of cancer. The defense did concede, though in its opening address,

(09:33):
that Erin has not been diagnosed with cancer.

Speaker 1 (09:36):
Now. Citizen website I Naturalist also got brought up again
today in court. Just to remind listeners, the jury has
previously heard evidence from doctor Tom May and Christine McKenzie
about them citing Deathcap mushrooms and logging this on the
website Our.

Speaker 2 (09:57):
Naturalists came up today in Constable epping Stalls evidence in
chief when he was asked about the cooler Master computer
that was seized from Aaron's house. The court heard that
three web pages relating to Our Naturalist were visited by
a browser on that computer on May twenty eighth, twenty
twenty two. Just making a point that this was one

(10:18):
year before the lunch, Constable epping Stall said that as
part of his investigation, he searched for these web pages
using the URLs that had been extracted from the device.
The jury heard that one of these web pages related
to a suburban siding of Deathcap mushrooms in Melbourne Southeast.
This post was made on Our Naturalist on May eighteen,

(10:40):
twenty twenty two, and as a completely separate post from
those you mentioned earlier. Brook by doctor May and miss Mackenzie.
A screenshot of this web page taken by Constable Eppingstall
was shown to the jury today.

Speaker 1 (10:54):
We also heard quite a bit about the food that
Aaron had previously purchased. The jury was shown a woolworst
transaction history. They were also shown a BP receipt and
a PUB receipt and I may.

Speaker 2 (11:07):
Just touch on this pub receipt first because it relates
to the topic we were just talking about. The jury
heard that on the same day a browser on the
cooler Master computer visited the I Naturalist website. It also
visited a website for the cur and Borough Middle Pub
only a few minutes later. The jury was shown this
receipt that you mentioned Brook. The order was placed on

(11:27):
May twenty eighth, twenty twenty two, at seven to twenty
five pm. On the receipt was Erin's name and her
phone number, and at risk of making our listeners hungry,
this contained two chicken palmers, a kids burger, a kid's
fish and a coconot sugar and the court heard that
the computer records showed that this meal had been ordered

(11:49):
only a few minutes after the visit to the I
Naturalist website.

Speaker 1 (11:52):
As I mentioned before, the jury were also shown a
receipt for the BP in coldamine that we had previously
spoken about in another episode. On that receipt it showed
three separate food items including tea and tea multicolor blister
which is a gum, a ham and cheese tomato sandwich,

(12:13):
and a sweet chili chicken wrap. And just to remind
the listeners again, this was the day that Aaron drove
her son to a flying lesson.

Speaker 2 (12:23):
And to round it out, I'll talk about Erin's Woolworths
transaction history, which Constable epping Stall told the court today
was recorded through Erin's Everyday Rewards account. Her transaction history
from July twenty three to July twenty eight, so about
the week before the lunch was shown to the jury
with the items that related to the beef Wellington meal

(12:44):
highlighted in yellow. Six days before the lunch, on July
twenty three, the record showed that Erin purchased one kilo
of sliced mushrooms, two packets of pastry, and some shalots.
Two days before the lunch, so this is on July twoe,
she bought two more packets of pastry, four beef I
fillts and seven hundred and fifty grams of sliced mushrooms.

(13:08):
And then finally, the day before the lunch, she bought
another two packets of pastry, one point five kilos of
potato mash, green beans, and one more beef I fill it.
When this transaction history was being shown to the jury
on the screens, Constable epping Store was asked by Miss
Warren what the last column meant, and it was a

(13:30):
column relating to the price of each product, but he
said that he wasn't quite sure what it was, and
at that moment a juror actually piped up and said,
I do, just as Christopher Beale quickly turned to the
jury and said, well, ladies and gentlemen, thank you for that,
but keep your comments for the jury room. After that,
Miss Warren did confirm that it was indeed the column

(13:53):
relating to the price.

Speaker 1 (13:54):
There has been some moments of laughter during his evidence
and he will return to the stand tomorrow to continue
his cross examination. To stay updated on this case, go
to the mush roomcook dot com dot a U for
more
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