From the perspective of Intelligence Studies, Studies in Belgian Intelligence uses an interdisciplinary methodology to approach both past and present of Belgian intelligence, to identify the underlying factors that are the cause of structural weaknesses, enduring dysfunctions, and strengths. This analytic framework allows for broader understanding about the capacities of the Belgian intelligence and security services, the constraints under which they operate, the challenges they face, and the influence of political and historical factors. Using archival sources, press clippings, interviews and discussions with insiders, and the reports of the Standing Intelligence Agencies Review Committee, Studies in Belgian Intelligence is comprised of a series of articles treating both the historical development of Belgium’s two intelligence services, as well as recent evolutions with a special focus on the circumstances of the run-up to the terrorist attacks of 2015 and 2016 on Paris and Brussels.