Prisons have been seen to be breeding grounds for radicalisation. This can happen through:
- recruitment of other prisoners;
- supporting extremist groups from prison;
- getting support from extremist groups outside prison;
- preparing for violent extremist/ideological inspired illegal acts after release;
- hostility to other groups of prisoners and/or staff;
- becoming more radicalised because of grievances/frustrations/anger related to being in prison.