(BBC) The removal of Shamima Begum’s UK citizenship in 2019 was unlawful, her lawyers have argued.
Ms Begum’s citizenship was stripped after she travelled to Islamic State group-controlled Syria when she was 15.
In a hearing challenging the decision, her legal team said it ignored the fact that she may have been trafficked into Syria, adding she has been “banished.”
The Home Office said Ms Begum was a risk to national security in 2019, and MI5 assesses she still poses a risk.
The case is being heard at the Special Immigration Appeals Commission (SIAC), which has similar standing to the High Court, and can hear national security evidence in secret if necessary.