A man accused of refusing to provide care for an elderly man after he suffered serious burns he later died from is yet to see police evidence against him.

Police say the matter is not a simple one and witnesses are still being determined.

Jie Peng, 66, was charged in March with domestic violence related offences on two counts of refusing to provide necessities of life likely to cause danger of death.

Court documents seen by AAP allege Peng refused to provide care for Wenmin Peng, knowing he had sustained serious burns in May 2022.

The 93-year-old was taken to Hornsby Hospital in a critical condition after being found unresponsive on the morning of May 31.

He died in hospital four days later.

Peng's lawyer, Giordano Borzuola, indicated he will plead not guilty when the matter was mentioned at Hornsby Local Court on Wednesday.

He requested a brief of evidence be delivered sooner.

"There is some potential for resolution and an earlier brief may expedite proceedings," he said.

The police prosecutor confirmed no brief of evidence has been served.

Asked by Magistrate Alexander Mijovich whether there were any witnesses, she said it was difficult to assess that without the brief.

"It's not a simple matter, there will be some medical material," she said

The magistrate ordered the prosecution to serve a brief in some form and ascertain whether there are any witnesses before the matter returns to court on May 23.

Peng remains on bail, walking out of court on Wednesday morning.

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