incarcerated for terrorism-related offenses has increased steadily across Europe. 1 Partially
this is due to the increased number of offenders (including lone actors, foreign fighter
returnees, sympathisers, and homegrown terrorists) against the backdrop of the civil war in
Syria and Iraq and the rise and decline of ISIS. At the same time, in response to United
Nations Security Council (UNSC) resolutions and EU guidelines, many governments have …