181However, that may be done summarily and the decision is not necessarily required to be a replica of the statement of objections (Musique Diffusion française and Others v Commission, paragraph 179 above, paragraph 14), since the statement is a preparatory document containing assessments of fact and of law which are purely provisional in nature (see, to that effect, Joined Cases 142/84 and 156/84 British American Tobacco and Reynolds Industries v Commission [1987] ECR 4487, paragraph 70). Thus, it is permissible for the Commission to supplement the statement of objections in the light of the parties’ replies, whose arguments show that they have actually been able to exercise their rights of defence. The Commission may also, in the light of the administrative procedure, revise or supplement its arguments of fact or law in support of its objections (see, to that effect, Case T-86/95Compagnie Générale Maritime and Others v Commission [2002] ECR II-1011, paragraph 448, and Case T-310/01Schneider Electric v Commission [2002] ECR II-4071, paragraph 438).