CEP Senior Advisor Ian Acheson writes: "In the meantime we must deal with things as they are. We need a framework for sentencing and releasing prisoners and this is in progress. The quantity of years given to an extremist is less important than the quality of the incarceration. Of the 82,000-odd prisoners, only about 220 are terrorists, with hundreds more screened after being deemed at risk of radicalisation. We need to be more assertive in managing the challenge they pose — from the start of their custody to their resettlement in the community."