A British teenager who joined the Islamic State group in Syria in 2015 said on Wednesday she was shocked by a government decision to revoke her citizenship.
"In order to protect this country, (the home secretary) has the power to deprive someone of their British citizenship where it would not render them stateless", the Press Association reported the Home Office as saying, adding it would not comment on individual cases. It's a bit upsetting and frustrating. "If he gets sent back to prison in Holland I can just wait for him while he is in prison".
The case highlights a dilemma facing many European countries, divided over whether to allow fighters and ISIS sympathisers home to face prosecution or bar them over security concerns.
The family now has 28 days from the day on which they received the letter from the Home Office (Tuesday) to push an appeal forward. In other words, the government can argue that the person it is trying to strip of citizenship is going to get citizenship elsewhere - giving the government grounds to revoke the person's existing legal status.
"But when someone turns their back on our fundamental values and supports terror, they don't have an automatic right to return to the UK", Mr Javid said.
However Javid hinted that Begum's newborn son could be treated differently.
Home Secretary Sajid Javid told Parliament on Wednesday: "Children should not suffer, so if a parent loses their British citizenship it does not affect the rights of their child".
But Najrul Khasru, a British-Bangladeshi barrister and part-time tribunal judge who has reviewed Bangladesh's citizenship laws, told the Guardian he believed Begum was not a Bangladeshi citizen unless, at the time of her birth, her parents had registered her at the High Commission, which he said was very uncommon within the British-Bangladeshi community.
Begum insists not - she says she has never held or applied for Bangladeshi citizenship, and she has never been to country.
Some immigration experts have suggested that because Begum's parents are from Bangladesh, she could claim citizenship there. That is a far more sensible approach, albeit perhaps not as politically attractive.
"Bangladesh asserts that Ms. Shamima Begum is not a Bangladeshi citizen".
Begum gave birth to a baby boy earlier in the week and remains in a refugee camp in northern Syria after fleeing ISIS-held territory before it was recaptured by allied forces. "The internet is a big issue here because with the internet, you bypass all the family members and you go straight to the child", he said.
Security footage of three British schoolgirls, left tor right, Kadiza Sultana, Shamima Begum, and Amira Abase, passing through security checks at Gatwick airport on their way to join Islamic State.
Lord Carlile, a former reviewer of terrorism legislation, said: 'The test will be of reasonableness and proportionality so she would have to establish that the Home Secretary acted in an entirely disproportionate way in removing her nationality'.
Under worldwide law, it is illegal for a country to render someone stateless by removing their citizenship.
The British government on Monday rebuffed US President Donald Trump's call for European allies to take back hundreds of alleged jihadists captured in the war-ravaged country.