Both their matters went before the Albury Children's Court on Tuesday, but neither case is yet ready for charge certification.

Prosecutor Sergeant Andrew Pike told magistrate Richard Funston that the brief of evidence - a component of that material was served on Tuesday - in one matter was "largely completed".

"The (office of the Director of Public Prosecutions) needs to review the briefs to make sure it's completed," he said.

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Mr Pike said that was essential so the DPP could "plug any holes, for want of a better expression" in the cases being brought against the accused, who are aged 16 and 17.

Neither of the boys, who are in custody bail refused, appeared in court on Tuesday, instead being represented by their lawyers.

They were arrested and charged in the wake of the girl being found inside a burning Swan Street house on November 11 in a "semi-conscious state".

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Each boy faces identical charges of attempted murder, wound person with intent to cause grievous bodily harm, choke person and intend to commit indictable offence, retain with intent to commit an indictable offence, take person in company with intention of committing a serious indictable offence and destroy or damage property with intent to endanger life.

The court was told previously, at a bail hearing two days after the alleged offences for one of the boys, that the co-accused might have been using marijuana in the lead-up to the alleged crime.

That meant the prosecution case, the defence argued, was strong, though the claimed drug use could impact whether the two charged boys were able to form intent.

One of the boys is still to front a forensic procedure hearing, which has been set down for April 17.

Mr Funston, in answer to a question from that boy's lawyer, said he did not know whether the co-accused would also take part in such a hearing.

Charge certification had expected to be completed by Tuesday, paving the way for a committal, but now would not be finalised until the next mention date of February 4.

Neither boy applied for bail so this was refused by Mr Funston.