Defending the ruling, Ms Begum’s solicitor, Daniel Furner, told the BBC: “Ms Begum has never had a fair opportunity to give her side of the story.
“She is not afraid of facing British justice, she welcomes it. But the stripping of her citizenship without a chance to clear her name is not justice, it is the opposite.”
Human rights organisation Liberty has also welcomed the ruling after they intervened on Ms Begum’s trial over the right to a fair trial.
Liberty lawyer Katie Lines told the BBC: “Banishing someone is the act of a government shirking its responsibilities and it is critical that cruel and irresponsible government decisions can be properly challenged and overturned.”