Abstract
Commonly used by justice actors, parliamentarians, other political figures, the media, philosophers and even legal doctrine, the concept of the law of circumstance is not, however, conceptually determined. Associated with multiple ideas, such as particularization, fragmentation, the precision of the dispositions or the title, emotionality, reactivity, precariousness, populism (…), it is not the object of a unitary definition and turns out to be nebulous. Therefore, we intend to devote all of this work to its definition. However, the latter have not purpose to study all the categories of laws of circumstance taken since the dawn of time. Indeed, relying on disparate and non comparable sources of law would not allow us to have a real common thread. In this sense, following an introductory delimitation process, we opted for parliamentary legislation as the reference for our study.This thesis is not only based on a restitution of the definitional elements of the law of circumstance, but on their construction. From this point of view, the preliminary establishment of the disparity of the arguments used to describe a law as a circumstance constitutes a rich and major study within this conceptualization. It makes it possible to have all the data necessary for its definition. From this plurality of ideas, it is indeed possible to discern a common conceptual framework : the event nature of a law political-media connotation leaves little room for ambiguity. It then becomes easier to deduce its intrinsic criteria …