59When exercising its unlimited jurisdiction, the General Court is not bound by the Guidelines, which do not prejudge the assessment of the fine by the Courts of the Union (Joined cases T-49/02 to T-51/02Brasserie nationale and Others v Commission [2005] ECR II-3033, paragraph 169, and Joined Cases T-101/05 and T-111/05BASF and UCB v Commission [2007] ECR II-4949, paragraph 213). Indeed, although the Commission must observe the principle of the protection of legitimate expectations when it applies its self-imposed rules, such as the Guidelines, that principle cannot bind the Courts of the Union in the same way, in so far as they do not propose to apply a specific method of setting fines in the exercise of their unlimited jurisdiction, but consider case by case the situations before them, taking account of all the matters of fact and of law relating to those situations (judgment of 30 May 2013 in C‑70/12 PQuinn Barlo and Others v Commission, not published in the ECR, paragraph 53).