Case T-255/17: Judgment of the General Court of 5 October 2020 — Les Mousquetaires and ITM Entreprises v Commission (Competition — Agreements, decisions and concerted practices — Administrative procedure — Decisions ordering an inspection — Plea of illegality against Article 20 of Regulation (EC) No 1/2003 — Right to an effective remedy — Obligation to state reasons — Right to inviolability of the home — Sufficiently strong evidence — Proportionality — Action for annulment — Complaints relating to manner of conduction the inspection — Refusal to protect the confidentiality of data relating to private life — Inadmissibility)