A forensic psychologist says accused Islamic State member Kawsar Ahmad is “very unlikely” to commit any further extremist offending, describing the Ahmad family matriarch as a “very unwell woman” who, if released on bail, would rarely leave the house.

Ahmad is applying for bail after being arrested upon her return to Australia from Syria last month.

The 54-year-old is facing four slavery-related offences arising from allegations she participated in the enslavement of a Yazidi woman while living under Islamic State rule in Syria.u

Prosecutors allege Ahmad and her husband, convicted Islamic State fighter Muhammad Ahmad, acquired the woman after she was captured during Islamic State’s campaign against the persecuted Yazidi minority.

The Crown alleges Ahmad taught the complainant Islamic State religious doctrine while her husband repeatedly raped and physically assaulted her during her captivity.

During a second day of bail submissions in the Melbourne Magistrates Court on Monday, forensic psychologist Michael Davis said Ahmad was suffering severe and complex mental illness after years spent in Syrian detention camps.

Dr Davis said Ahmad “certainly meets full criteria” for PTSD, experiences dissociative episodes where she appears to “space out”, and had developed what clinicians describe as “double depression”.

“She is a very unwell woman,” he said.

“The way she described her life is that whilst they were in the camps, her daughters were essentially looking after her.”

Dr Davis said she was not suicidal because of her religious beliefs and her desire to remain with her children.

Dr Davis accepted Ahmad had been radicalised while living under Islamic State but said he found no evidence she remained committed to its ideology.

“I can’t see her being re-radicalised with the depth of her anger and hatred towards Islamic State,” he said.

The court heard Ahmad now holds “quite negative views” towards her imprisoned husband and was unlikely to ever see him again.

Defence barrister Peter Morrissey SC said written instructions had already been given to start divorce proceedings.

Dr Davis said the deaths of Ahmad’s two sons and a brother in Syria further reduced any risk of extremist offending.

“I see it as being a reason why she’s so angry with Islamic State now,” he said.

“My belief is that she’s currently so unwell and currently so absolutely focused on being able to be with her children and grandchildren again that she’s very unlikely to want to leave the house much.”

Mr Morrissey told Chief Magistrate Lisa Hannan his client wanted “to live a life of peace and detachment from militancy, violence, extremism and coercion”.

“She is not a supporter of ISIS,” he said.

“She wants to have nothing to do with them. She wants her children and grandchildren to have nothing to do with them.”

He said Ahmad was prepared to accept any bail conditions imposed by the court.

Ahmad’s brother, Abraham Abbas, pictured told the court he had offered a $75,000 surety secured against his family home if she were granted bail.

Mr Abbas said he would see his sister every day, had already arranged medical and psychological appointments for her and would immediately contact police if she breached any bail conditions.

“I would lose my house and virtually everything that I’ve ever worked for,” he said.

“I denounce Islamic State. I never supported Islamic State.

“Our family doesn’t support Islamic State … They’ve ruined our lives.”

Ahmad’s daughter, Zeinab Ahmad, who also faces slavery-related charges, was refused bail last week.

Morrissey argued Ahmad’s lengthy detention in Syria, deteriorating mental health and the likely delay before trial amounted to exceptional circumstances justifying bail.

But Commonwealth prosecutor Andrew Sprague opposed the application, arguing the terrorism bail provisions applied because Ahmad was alleged to have made statements supporting terrorist acts and engaged in conduct supporting Islamic State’s campaign against the Yazidi people.

He submitted the alleged enslavement formed part of Islamic State’s broader systematic attack on the Yazidi population and therefore constituted activity supporting terrorist acts.

Chief Magistrate Lisa Hannan repeatedly tested both sides on that argument.

“She’s got an (Islamic State) ID card, she’s living under Islamic State,” she told Mr Morrissey.

“She’s made at least a couple of comments which support Islamic State. She’s moving around with them. She’s teaching, and as part of that world that she’s living in, she agrees to the purchase with money of a human being … why is that not joining in?”

Chief Magistrate Hannan will continue hearing submissions on Tuesday before delivering her decision on Thursday afternoon.