Key Event
7m ago
Don't consider expert evidence in isolation, jury told
Mikaela Ortolan profile image
By Mikaela Ortolan
During his evidence, Dr Sorell had identified that there were eight possible visits to the Loch postcode area based on phone data collected from one of Erin Patterson's handsets.
These possible visits took place across March 2022, April 2022, August 2022 and February 2023.
There were some gaps in the records which Dr Sorrell had noted while giving evidence.
"When considering the issues that his evidence bears upon you, don't consider his evidence in isolation," Justice Beale tells the jury.
He says the jury may use Dr Sorell's evidence as an indication Ms Patterson "possibly" visited Loch on certain dates but may not use it as evidence that the accused "actually" visited Loch at those times.
Key Event
10m ago
Some limitations to expert evidence
Mikaela Ortolan profile image
By Mikaela Ortolan
Justice Beale stated that Dr Sorell agreed during the trial that there were "significant limitations" in his evidence in terms of time and place.
"The best that can be said is that a phone is in a particular area or it is not in a particular area," Dr Sorell said while giving evidence.
Key Event
13m ago
We look at expert evidence given on phone data
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By Mikaela Ortolan
Justice Beale gives us a rundown of Dr Sorell's qualifications and the work he does looking at mobile phone network records and mobile phone data.
He highlights some key terminology Dr Sorell used in his evidence such as IMEI number, which is the serial number for a mobile handset.
In Dr Sorell's evidence, he explained how when a handset is on the move it will switch to different base stations or phone towers. He said weather may impact base stations.
He said the handset can initiate a data connection for its own purpose.
We're looking at this because of a possible trip Erin Patterson took to Outtrim where it's alleged she foraged for mushrooms. It was her mobile phone records that suggested she might have been in this area during a specific time.
It is quite technical information but all of this evidence has already been presented to the jury in the trial.
Justice Christopher Beale begins his final instructions to the jury before they start their deliberations. The instructions are expected to go for at least two days. Follow his address as it happened.
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