The next step of our work consisted in determining a means to <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">measure</hi> the growth or regression of any given law over time. What we are interested in is not only the absolute size of the law but, more generally, the degree of difficulty it can represent for a comprehensive overview by individuals deemed to conform to it or to apply it in the case of legal litigation. Beyond this practical aspect, it is also our wish, and our theoretical posture, to understand laws as organic actants (Callon 1986; Latour 1984, 1996), who prosper or regress in a dialectical relationship with the evolution of their “environment” (Ourednik 2010: §2.3.4.1, §2.2.4.2.), i.e. in relation to the context of other laws, superior ( e.g. international) laws, as well as in relation to the social, cultural and economic climate. This posture allows us to speak about growth and regression of laws. Further, considering the dialectical relationship between an actant and its environment, one <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">relatum</hi> can be taken as an index (Peirce et al. 1934) of the other. More specifically, observing the evolution of a law allow us to formulate historical hypotheses about the evolution of its environment. The question is what quantitative variables can be used to measure the evolution of a law.