Here’s all I could find regarding where the sniffer dogs searched:
On Thursday, detectives spent several hours searching Patterson’s sprawling Leongatha property where the allegedly fatal lunch was served back in July. They searched the home with
specialist dogs trained to sniff out phones, laptops, SIM cards and USB sticks. The canines can detect unique odours excreted by electronic devices.
Investigators searched Patterson’s car, the home’s garage, outdoor furniture, and a meter box located on the back deck. An armchair and bushes close to the house received particularly close attention from the dogs.
…
Patterson, whose home was also searched in August, had already handed over her mobile phone to police for examination shortly after detectives began investigating the deaths.
The cook at the centre of the deadly mushroom meal, charged with three counts of murder and five of attempted murder, has appeared in court.
www.theage.com.au