Case T-357/06: Judgment of the General Court of 27 September 2012 — Koninklijke Wegenbouw Stevin v Commission (Competition — Agreements, decisions and concerted practices — Netherlands market in road pavement bitumen — Decision finding an infringement of Article 81 EC — Existence and classification of an agreement — Restriction of competition — Guidelines on the applicability of Article 81 EC to horizontal cooperation agreements — Rights of the defence — Fine — Aggravating circumstances — Role of instigator and leader — Absence of cooperation — Commission's powers of investigation — Right to the assistance of a lawyer — Misuse of powers — Calculation of the amount of the fines — Duration of the infringement — Unlimited jurisdiction)