The Western Australia's Department for Child Protection and family support has been made aware of police information over "allegations of the father's criminal background" in the case involving Down Syndrome baby Gammy.
A spokesman told the BBC: "Last night we were made aware of certain information by the police regarding allegations of the father's criminal background."
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The 41-year-old father of six died last Thursday - a week before he and the band had been due to begin touring in North America.