Opinion of Advocate General Kokott delivered on 15 July 2021.#Liviu Dragnea v European Commission.#Appeal – Investigations conducted by the European Anti-Fraud Office (OLAF) – Investigation reports – Request for an investigation to be opened into the conduct of previous OLAF investigations – Request to access documents – Letter of refusal – Article 263 TFEU – Decision against which an action for annulment may be brought – Time limit for bringing proceedings – Action against a letter confirming OLAF’s investigation reports – Regulation (EC) No 1049/2001 – Article 6 and Article 7(2) – Obligation to inform the applicant of his or her right to make a confirmatory application.#Case C-351/20 P.