Judgment of the Court (Fourth Chamber) of 17 September 2020.#Mylène Troszczynski v European Parliament.#Appeal – Law governing the institutions – Member of the European Parliament – Protocol on the privileges and immunities of the European Union – Article 8 – Parliamentary immunity – Activity not connected to parliamentary duties – Publication on the Member’s Twitter account – Article 9 – Parliamentary privilege – Scope – Decision to waive parliamentary immunity.#Case C-12/19 P.