The case of teenager Shamima Begum has sparked a debate about how to deal with people linked to Islamic State – and how, if at all, to reintegrate them back into British society.
When she was tracked down in a Syrian refugee camp, the 19-year-old was described as an “indoctrinated IS bride” by the journalist who found her.
And in an interview with the BBC, Ms Begum seemed aware of what might await her if she returned – “a deradicalisation course”.
But what might that involve – and does it work?
What is deradicalisation?
Deradicalisation programmes began emerging in the early 2000s, according to the academic-led Centre for Research and Evidence on Security Threats.
What makes them different to other strategies is the aim to change a person's ideas and attitudes.
In the UK, the government runs Prevent – a system which aims to identify vulnerable people and intervene in their lives before they become terrorists. Last year, 7,318 people were referred to the programme.
Prevent has different strands. The Channel scheme is for individuals who cause such concern that they need concerted help to deradicalise.
Another part is the Desistance and Disengagement programme, aimed at rehabilitating people already convicted of terror offences or returning from conflict zones. Last June, the government announced it was planning to double investment in that strand.
The government says it aims to tackle a person's ideology, as well as the personal issues…
