Identification of relevant cases and systematic issues involving the overlap of several legalities represent the point of departure for the project. In this mapping exercise, we will examine both inter-systematic and inter-regime laws and regulations, as well as case law from the fields of international law (Milan-Bicocca), constitutional law (LUISS – Roma) and administrative law (Viterbo-Tuscia). After identification of the cases and the case studies, we will further categorize our findings, define typologies of interactions and explain the import of inter-legality in different doctrinal fields. The aim of this exercise are two-fold. The first one is to demonstrate the shortcomings of current one-sided approaches to law and adjudication by providing a more nuanced perspective: current law is not simply a discrete series of self-related rule-making and unrelated sources, but rather a composite scenario of several normative claims which have to be equally taken into account. On this basis, the second objective is to suggest a better way of managing conflicts that overcomes the narrow perspective of closed orders and fosters a culture of justification in the face of composite nature of law.