Opinion of Advocate General Medina delivered on 15 December 2022.#UAB 'Brink's Lithuania' v Lietuvos bankas.#Request for a preliminary ruling from the Lietuvos vyriausiasis administracinis teismas.#Reference for a preliminary ruling – Protection of the euro against counterfeiting – Regulation (EC) No 1338/2001 – Article 6(1) – Payment service providers engaged in the processing of banknotes and their distribution to the public – Decision ECB/2010/14 – Article 6(2) – Detection of unfit euro banknotes – Automated fitness checking of banknotes – Minimum standards published on the website of the European Central Bank (ECB) and amended from time to time – Personal scope – Extent of cash handlers’ obligations – Binding force – Principle of legal certainty.#Case C-772/21.