This text, which is based on the bank’s “pension livrée”, uses a technical example to illustrate the precise mechanism that gives rise to the affirmation that law is developed according to an inherent organisational process, that it proceeds from the use of existing provisions to respond to new demands with which it is faced. Thus, law undergoes a continuous process of qualification and self-distinction within self-imposed boundaries that are never to be crossed. Sometimes, nevertheless, these distinctions are broken into exceptions, which do not necessarily impair the integrity of the legal system which become new poles around which law self-produces.