This paper focuses on the theoretical framework and philosophical premises of Pierre Bourdieu’s contribution to sociology of law. In Bourdieu’s lexicon, the champ juridique is the space in which the distinctive characteristics of norms and of legal argumentation are produced. In the champ juridique, an ideological refusal opposes the acknowledgement of the power relations that condition the production of legal rules. To be rigorous, legal sociology should keep its distance from the champ juridique and from its conceptual products, and observe the traditional science juridique as the result of a professional ideology which describes legal rules as totally independent from social conditions and constraints. The champ juridique can be observed, from this "external" point of view, as the relatively independent field in which the symbolical violence of legal authority is produced.