“…These were characterised by different profiles in terms of political/ideological motivation, organisational affiliation, socio-economic background, education, criminal records, and the use of violence. A study of Jihadi terrorist cells in Europe by Petter Nesser [15,16,17] found that these cells typically consisted of four main categories of terrorist cell members -the entrepreneur, the protégé, the misfit and the drifter. Each type had different socio-economic background and related to ideology and politics in different ways.…”