About the existing analogy between the epistemological and methodological aspects of the activity of information services and some scientific disciplines, advocating for a more scientific approach to the process of gathering and analyzing information within the information cycle. I affirm that currently the theoretical, ontological and epistemological aspects, in the activity of many information services, are underestimated, causing incomplete understanding of current phenomena and creating confusion in inter-institutional collaboration. After a brief Introduction, which includes a history of the evolution of the intelligence service concept after the Second World War, in Intelligence Activity I define the objectives and organization of intelligence services, the basic model of these organizations (the information cycle), and the relevant aspects of gathering information and information analysis. In the Ontology section I highlight the ontological aspects and entities that threaten and are threatened. The Epistemology section includes aspects specific to the information activity, with the analysis of the main model (Singer) traditionally used, and exposes a possible epistemological approach through the prism of the concept of tacit knowledge developed by the scientist Michael Polanyi. In the Methodologies section I present various methodological theories with an emphasis on structural analytical techniques, and some analogies with science, archaeology, business and medicine. The paper ends with the Conclusions regarding the possibility of a more scientific approach to the methods of gathering and analyzing information within the intelligence services.