RBBM.
On dogs I found these.
Abc (Oct 1st 2025) summary article of early search efforts. The report and a few others going back to 28th Sept (not linked here, but can be found listed at the bottom of summary) confirm the deployment of dogs.
"...multiple agencies — including aerial, water, trail bike and mounted police, SES, community volunteers and sniffer dogs —"
Authorities are searching for a missing four-year-old boy on a sheep grazing station in the mid-north of South Australia. Here's what we know about the search so far.
www.abc.net.au
This 60 minutes report includes a (very small!) piece of search footage where you can see Police handlers with their dogs (approx time stamp 3:52).
The above also has some excellent footage of the landscape and environment on-the-ground searchers were dealing with. Jmo