The birth certificate of Karlie Pearce-Stevenson's daughter was allegedly discovered at a home linked to her accused killer last month.

Daniel James Holdom, 41, was charged last month with murdering the Alice Springs-born mother in the Belanglo State Forest in December 2008.

The remains of her daughter Khandalyce were found dumped in a suitcase on the side of a highway in Wynarka, South Australia, in July this year.

It was only last month that both sets of remains were positively identified after a major police breakthrough that linked the cases.

Fairfax Media understands that, on the day police revealed the breakthrough at a press conference, detectives searched the home of Mr Holdom's sister after receiving a tip-off.

Someone allegedly told police Mr Holdom took two suitcases, believed to have contained some of Ms Pearce-Stevenson's possessions, after she died.

It will be alleged that detectives found Khandalyce's birth certificate at Mr Holdom's sister's home during the search last month.

It came days before police revealed an elaborate fraud was carried out across multiple states after the deaths of Ms Pearce-Stevenson and Khandalyce.

It involved at least three people using the pair's identity documents to funnel $90,000 through Ms Pearce-Stevenson's bank account, including accessing her Centrelink payments.

Mr Holdom has not been charged in relation to the fraud or Khandalyce's death.

His former girlfriend, Hazel Passmore, has been questioned by police in South Australia over any involvement she might have had in the fraud.

Ms Passmore was wheelchair-bound in 2008 after Mr Holdom crashed the car they were in, killing Ms Passmore's two children.

In January, 2013, police on the NSW Central Coast found a bank card with the name "K Pearce-Stevenson" in Mr Holdom's wallet, court documents reveal.

The key card had expired and the bank had changed its name.

Mr Holdom's murder charge was mentioned in Central Local Court on Thursday.

Mr Holdom's solicitor Tim Dick said he did not require his client to appear on screen via audio-visual link.

The court ordered the brief of evidence be served by January 7.

Mr Holdom did not apply for bail and it was formally refused.

He will appear in Central Local Court on January 28.