In what is likely to be a contentious hearing, Amirah Droudis will face the Downing Centre Local Court where a magistrate will consider the status of her bail.

Papers were lodged with the court late on Friday, after NSW Attorney-General Brad Hazzard asked the Director of Public Prosecutions to review the decision to grant bail.

Ms Droudis, 35, was charged in November last year with murdering Noleen Hayson Pal, Monis' ex-wife, who had been stabbed 18 times and then set alight in the stairwell of her Werrington home in April 2013.

When asked about the possibility of the court deciding to continue Ms Droudis's bail, Premier Mike Baird said he understood community concerns.

"All of us share anger and dismay about what happened but ... there is one person to blame for this, we know who he is and his intent was to divide this city," Mr Baird said on Sunday.

"He didn't divide it, what's happened is we've united and come together."

Monis was charged over Ms Pal's death - with inciting, procuring, aiding and counselling Ms Droudis to murder Ms Pal and assisting and harbouring Ms Droudis after the killing. He was also facing several counts of sexual assault.

Prime Minister Tony Abbott said an anonymous call to the National Security hotline about Monis, made before the siege, was followed up.

"The advice I have is that the call in question was followed up and that the information that was provided didn't expose any threats of direct violence by the Martin Place murderer," Mr Abbott said.

"It was followed up. It really was followed up, but it didn't reveal any imminent attack by this individual."

He said a joint Commonwealth-state investigation will look at all the circumstances surrounding the siege.

"The commitment I give to you is that I will do everything humanly possible to keep you safe, and that means learning the right lessons from this atrocity."

Funerals for siege victims Katrina Dawson and Tori Johnson will be held on Tuesday.

Ms Dawson's memorial service will be held in The Great Hall at the University of Sydney.

Her family have requested that attendees wear a splash of aqua, which was her favourite colour, and asked that instead of bringing flowers, mourners donate to the Katrina Dawson Foundation.

The foundation was set up with the aim of focusing on the education of women.

A funeral for Mr Johnson will be held in Sydney's eastern suburbs. His family has asked for any donations to be directed to beyondblue.

The organisation, which raises awareness of depression, had received nearly $90,000 in Mr Johnson's name by Sunday afternoon.

The coroner was continuing a post-mortem examination on Monis's body on Friday afternoon. The autopsy is understood to be particularly complex than that of his victims due to the nature of his injuries.

Once completed, a burial order will be completed and his body released to his next of kin.

But if no one claims his body, a "destitute funeral" will be arranged by NSW Health.