aroa if you download the QPS zip file that PAIN provided, see here:
Zippyshare.com - QPS Report.zip and I think it is in the second PDF file you will see that the police divers took a number of phots of the areas of interest.
However as my post above indicates the ATSB experts couldn't make "conclusive or absolute findings" without raising and pulling apart the Yak! But no government agency wanted to foot the bill for salvaging the aircraft, again the QPS report highlights the salvaging issue
If you've got the time aroa it is well worth a read!