Sections of the leges municipales from at least forty different cities in Southern Spain have survived to us. These laws, understood as a powerful instrument by which Roman legal regulations were introduced into the provinces, are usually connected with Baetica. As a result it is too easy to overlook the fact that corresponding leges were issued wherever Roman or Latin cities were founded, and continued to be issued long after the Flavian era, the time to which most of the surviving fragments date. Documentary evidence has now made clear that leges municipales are a general phenomenon which continued to play a role in the second and third centuries CE. Fragments of city laws are known not only in the province of Alpes Maritimae, but also in Noricum (Lauriacum), Moesia superior (Ratiaria), and in Troesmis (Moesia inferior). The law for Troesmis is especially important because, in contrast to the laws from Baetica, it was issued for a Roman and not a Latin municipium. This demonstrates that specific Roman legal regulations, which were issued in Augustan times exclusively for Roman citizens, were still of relevance in the second century and also must have been used in the province of Moesia inferior. This material indicates that people had to obey Roman legal regulations more or less everywhere in nearly all provinces of the West. The leges municipales were thus one of the decisive means by which Roman law spread in the provinces—more so than has previously been realized—and could even be the basis for daily life.
Matthew J. Thomas. Paul’s ‘Works of the Law’ in the Perspective of Second Century Reception