This might help

https://www.dcp.wa.gov.au/Fosteringa...terCaring.aspx

An Aboriginal Child Placement Principle? | ALRC

http://www.watoday.com.au/wa-news/ab...219-2eorg.html

My understanding is that the preference is to place indigenous children within their own communities but as indigenous children are overrepresented, it's not always possible.