I noticed on the news that they stated that the ATSB and CASA won't be investigating this tragic crash...
http://www.pprune.org/dg-p-general-a...-brisbane.html...as the aircraft was experimental and not commercially registered. Oh well at least they're consistent!
It is interesting to note that this "classification" issue/discepancy was picked up by the FAA in the 2009 ICAO audit:
From para 3.3.21:
Under the ATSB guidelines, occurrences that may fit the ICAO Annex 13 definition of an aircraft accident or incident may not be investigated. There is however a process established for the acquisition of supplementary funding of accident investigations, when required, in the event of a major accident.