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4 hours ago
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Eight 'possible visits' to known death cap area
Digital forensics expert Dr Matthew Sorell has returned to the witness box.
He is being questioned by Crown prosecutor Jane Warren as his evidence-in-chief continues.
Dr Sorell is being shown Erin’s phone records from January 1, 2022, to April 27, 2023, relating to the Loch area, near Leongatha.
He
told the court on Monday it was his opinion that the mobile phone made a “possible visit” to Loch on both April 28 and May 22, 2023, after death caps were logged in the area on citizen science website iNaturalist on April 18.
The court heard Dr Sorell would be asked questions about other “possible visits” to the Loch area in the 18 months prior to provide a snapshot of the mobile phone’s movements.
The screens in the courtroom have stopped working, so the jurors have been asked to view the phone records on their iPads.
Dr Sorell confirmed he detected eight “possible visits” by the mobile phone to the Loch area during this 18-month period.
4 hours ago
What Erin's phone records suggest in days after lunch
Dr Sorell is now being shown Erin’s phone records between 8am and 10am on July 31, 2023, two days after the lunch.
The jury previously heard Erin had presented to Leongatha Hospital at 8.05am on July 31, but discharged herself against medical advice at 8.10am.
She then returned to Leongatha Hospital about 9.50am.
Dr Sorell said the records were “most consistent” with the mobile phone being to the west of Leongatha, although it connected with an Outtrim base station for about three minutes at 8.55am.
He said a visit to the Outtrim area was “not strongly supported” because the records were silent as to the location of the mobile phone after 8.58am.
Dr Sorell said he accepted that movement within a property in Leongatha was consistent with the records, considering it was a fleeting connection to the Outtrim base station.
3 hours ago
What experts found in 'years' of Erin's phone records
Dr Sorell is now being cross-examined by defence barrister Colin Mandy SC.
He explained to the jury on Monday how communication records or “call charge” records provide basic detail relating to calls, texts and data usage, while “event-based monitoring” (EBM) records provide “more high-level detail”.
He confirmed he had been provided years of call charge records for a phone belonging to Erin, as well as “targeted dates” of EBM records from April and May 2023, relating to the Loch and Outtrim areas.
Mr Mandy asked Dr Sorell whether it was “common” in the years of call charge records he analysed to see the mobile phone switch between two base stations in “quick succession”.
He agreed it was common and said, in those instances, the mobile phone may not have moved, but one base station had “temporarily dominated” over the other.
Mr Mandy also asked Dr Sorell whether he observed instances where the mobile phone appeared to be stationary in Leongatha, but was connecting with base stations in Outtrim or Mirboo North, for example.
“Generally speaking, when those more distant connections occur in a hurry, the phone may not be moving very far away from the Leongatha broad area, but those more distant connections denote some movement … although not large movement,” Dr Sorell said.
2 hours ago
Accused made five possible visits to Outtrim in 18-month period: Expert
Dr Sorell has been shown a topographical map of the Outtrim area.
The court heard the Outtrim base station was more elevated than the nearby Koonwarra and Leongatha base stations.
Mr Mandy then asked Dr Sorell about Erin’s phone records from January 1, 2022, to May 21, 2023, relating to the Outtrim area.
Dr Sorell told the court on Monday it was his opinion that the mobile phone made a “possible visit” to Outtrim on May 22, 2023, after death caps were logged in the area on iNaturalist on May 21.
He confirmed he detected five “possible visits” to the Outtrim area during this 18-month period.
His cross-examination will continue at 2.15pm.
56 minutes ago
Defence casts doubt on death cap site phone pings
Dr Sorell has returned to the witness box.
He is being asked about Erin’s phone records from May 22, 2023, relating to the Outtrim area.
Dr Sorell told the court on Monday it was his opinion that the mobile phone made a “possible visit” to Outtrim on May 22, 2023, after death caps were logged in the area on iNaturalist on May 21.
Under cross-examination by defence barrister Colin Mandy SC, Dr Sorell was asked whether the records from May 22 were consistent with the proposition that the mobile phone “moves from Leongatha, down the Bass Highway, heading to Inverloch, and at some point … remains stationary for a period of time.”
But Dr Sorell said the concern he had with that proposition was that, according to the records, the mobile phone did not connect with the Kongwak base station during that journey.
“That’s an anomaly that doesn’t fit with your proposition,” he said.
However, he agreed with Mr Mandy that there was a possibility the mobile phone did not enter the Outtrim postcode area on May 22.
“There are locations outside the Outtrim postcode where this set of records could conceivably come up,” Dr Sorell said.
35 minutes ago
Accused's phone 'definitively' in the Loch area: Expert
He is now being asked about Erin’s phone records from April 28, 2023, relating to the Loch area.
He told the court on Monday it was his opinion that the mobile phone made a “possible visit” to Loch on April 28, after death caps were logged in the area on iNaturalist on April 18.
He agreed with Mr Mandy that there was no records that show the mobile phone was “definitively” in the boundary of the Loch township.
But he said the records show the mobile phone was certainly to the east of the Loch township.
At one point, the cross-examination paused momentarily.
“Nice little beetle crawling across the microphone,” Dr Sorell told the court.
3 minutes ago
CCTV shows Erin perusing sandwiches at servo day after fatal lunch
Detective Senior Constable Khuong Tran has been called as the next witness.
He told the court he is attached to the homicide squad and helped investigate this case.
The court heard he obtained CCTV footage from a BP in Caldermeade from July 30, one day after the lunch, which was visited by the accused.
The footage was then played to the jury.
Erin can be seen entering the BP about 3.19pm and walking towards the toilet.
She exits the toilet about 9 seconds after entering.
She can then be seen looking at the sandwiches in the fridge section, before walking over to another area of the service station, which is out of view.
She makes her purchase before leaving about 3.22pm.
In the footage, Erin is wearing a grey sweater, cream pants, black sandals and a black crossover bag.
The jury previously heard Erin had driven her son to his flying lesson in Tyabb, close to Caldermeade, on July 30 before it was cancelled by the instructor.