Multifarious definitions and different practices are associated with the "judicial comity" notion. Nevertheless, this paper seeks to demonstrate the existence of a "key feature" of the phenomenon. The analysis of cases illustrates that the implementation of certain judicial techniques expresses a courts’ "regulating function" aimed at governing the relations between different legal systems within the global space – when the codified criteria regulating those relations are lacking or insufficient. It is an original approach, which allows us to identify the new boundaries of the phenomenon – distinguishing between the techniques that are effectively an expression of judicial comity, and those which are not – and consequently to depart from the definitions elaborated by a certain jurisprudence and literature. From this standpoint, the judicial comity produces an interesting effect of "legal comity", which can lead to a mitigation of the disorder characterizing the global space. At the same time, this perspective gives rise to some questions, for example, related to the real value of the phenomenon and the existence of extrajudicial interests behind the application of the techniques.