A former Metropolitan Police chief believes that ISIS bride Shamima Begum should have access to legal aid.
The ex-superintendent, Dal Babu, told BBC Radio 4's Today programme that Ms Begum was "groomed" and serious questions about how she was able to escape the country at age 15 when she was already on the radar of the authorities.
The runaway schoolgirl was one of three British teenagers to leave Bethnal Green to join the terror cult in 2015.
She later resurfaced at a Syrian refugee camp last month, where she soon gave birth to a baby boy, who later died.
Ms Begum - who married an ISIS fighter - was stripped of her British citizenship but is desperate to return home.
Foreign Secretary Jeremy Hunt said granting her legal aid so she could challenge the decision to deprive her of UK citizenship would make him "very uncomfortable".
But Mr Babu, who is a friend of the family, told Today that Ms Begum should have legal aid to make sure the correct process is followed.
The former Met Police chief said: "Isis is a murderous organisation. They are a horrendous organisation and I don't think anyone in their right mind would be joining that organisation.
"She was a young woman. She was 15 when she was groomed. The police were aware of this, the counter-terrorism police were aware of this, the school she was at was aware of this, and the social workers at Tower Hamlets Council were aware of this.
"There has been no serious case review. Normally, when a young person dies as a result of failures in safeguarding, there is a serious case review."
Mr Babu said that, in order for a proper review to take place, Ms Begum needed to get legal aid.
"I think legal aid is a principle of the British legal justice system. There will be people who can afford to have swanky lawyers, there will be people who have no money who are in desperate situations."
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Foreign Secretary Mr Hunt said Ms Begum "knew the choices she was making", but acknowledged the UK is a country which believes people should have access to legal representation.
Speaking on the same programme, Mr Hunt said: "On a personal level, it makes me very uncomfortable because she made a series of choices and she knew the choices she was making, so I think we made decisions about her future based on those choices.
"However, we are a country that believes that people with limited means should have access to the resources of the state if they want to challenge the decisions the state has made about them and, for obvious reasons, those decisions are made independent from politicians."
Mr Hunt added: "The decision to deprive her of her citizenship was taken by a politician. Obviously the decision about whether she accesses legal aid or not has to be done independently."
A Legal Aid Agency spokesman said: "We are unable to comment on individual cases.
"Anybody applying for legal aid in a Special Immigration Appeal Commission case is subject to strict eligibility tests."
Last month, Ms Begum's father told the Mail on Sunday he did not have sympathy for his daughter.
Ahmed Ali, 60, who lives in Bangladesh, said: "I am on the side of the Government. I can't say whether it is right or wrong, but if the law of the land says that it is correct to cancel her citizenship, then I agree."
