ABSTRACT
This chapter explores violent political movements in its various forms that have employed many different methodological approaches, ranging from econometric modeling to intensive case studies of individuals and organizations. The causal chain that leads guerrilla movements to transform into political parties or criminal organizations was fully explored with the process tracing methodology. Process tracing methodology comes in many different forms, ranging from the detailed narrative to the conversion of the historical narrative into an analytic explanation. The level of illegitimate resources may affect the transformation of a guerrilla movement into a criminal organization. The United Kingdom has a first-past-the-post (FPTP) electoral system. The Republic of Ireland and Northern Ireland have a single transferable vote (STV) electoral system. It should be noted that in both cases the political wings existed from the founding of the guerrilla movements. The non-violent political institutional framework of both movements was not created during the transformation but was relied on more once transformation occurred.
