Case T-470/20: Judgment of the General Court of 7 September 2022 — DD v FRA (Civil service — Temporary staff — Disciplinary regime — Removal from post — Opening of an administrative investigation — Initiation of disciplinary proceedings — Requirement for impartiality — Error of law — Manifest error of assessment — Articles 11, 12 and 21 of the Staff Regulations — Duty of loyalty — Legal certainty — Freedom of expression — Article 11 of the Charter of Fundamental Rights — Principle of sound administration — Duty of care — Presumption of innocence — Right to be heard — Reasonable period of time — Proportionality of the sanction)