Dealing with terrorists; Letters.
Anyone found guilty of a terrorist crime, fighting for a jihadist organisation in Syria or any other country, attending a training camp for terrorists either inside or outside of this country will be subject to the following: He (she) will be deported along with all of his immediate relations, mother, father, siblings, wives, children as far as second cousins, to their country of origin.
IRA terrorists ditto. Any appeal would be heard after deportation. Problem solved.