Queensland's Child Safety Department has told three sisters repeatedly raped by a foster child that they were partly to blame for not locking their bedroom doors.
The girls, then aged 17,16, and 13, were repeatedly sexually assaulted by a 15-year-old boy fostered by their mother in 2006, the Courier Mail reports.
For legal reasons, neither the victims or the perpetrator can be named.
Child Safety reportedly failed to inform the family that the boy had been convicted for raping a three-year-old girl two years earlier.
Police records reveal Child Safety told the family the boy was no risk to them, and said while he had "done something" to another child, it was the fault of a previous carer.
A document filed in District Court from Child Safety claims the mother and the victims themselves shared responsibility for their repeated rapes.
"The alleged consequences were caused or contributed to by the negligence of (two of the sisters) in: failing to lock (their) bedroom door; failing to inform (their) mother of the acts ... (and) failing to tell (their mother) the foster boy was entering (their bedroom at night)," the document said.
Earlier a court had heard that the doors had been locked but the boy managed to somehow get in anyway.
The teenage boy was convicted of 14 sexual offences against the sisters in 2008, but was set free after 204 days already served.