The foster mother and brother of murdered school girl Tiahleigh Palmer have pleaded guilty to one count each of perjury and attempting to pervert the course of justice.
Julene Thorburn, 54, and her son Josh, 20, will be sentenced at some point in 2017, the pair's lawyer Jason Jacobson confirmed to AAP.
Julene’s husband, Rick Thorburn, has been charged with the 12-year-old’s murder and her other son, Trent, faces incest charges for having a sexual relationship with Tia.
Tiahleigh lived with the family for 10 months before her murder, and her body was found on the banks of the Pimpama River in Queensland a week after she went missing, on November 6, 2015.
Julene and Josh will also provide evidence for the prosecution.
“Albeit late, they are now giving their complete co-operation to the police investigations,” Mr Jacobson revealed in October, according to The Guardian.
“They’ve now taken the step of being prosecution witnesses to give evidence about everything they know, so you can take it from that that theirs very much is a family divided.”