Judgment of the General Court (Ninth Chamber, Extended Composition) of 5 October 2020.#Intermarché Casino Achats v European Commission.#Competition – Cartels – Administrative procedure – Decision ordering an inspection – Plea of illegality of Article 20 of Regulation (EC) No 1/2003 – Right to an effective remedy – Equality of arms – Obligation to state reasons – Right to inviolability of the home – Reasonable grounds – Evidence of participation in the suspected infringements – Proportionality.#Case T-254/17.