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In those circumstances, the Bundesverwaltungsgericht (Federal Administrative Court) decided to stay the proceedings and to seek a preliminary ruling from the Court on the following questions: ‘(1) Do Articles 4 and 17 of Directive [2004/25] – read in the light of the principle of effectiveness under EU law – preclude an interpretation according to which a decision having the force of res judicata taken by the supervisory authority pursuant to Article 4 of Directive [2004/25] by means of which a natural person’s breach of national provisions adopted in implementation of Directive [2004/25] was established is not given binding effect in the context of proceedings for an administrative penal sanction subsequently conducted by that supervisory authority against that same person, as a consequence of which that person once again has all the factual and legal pleas and evidence available to him or her to challenge the breach of law established in the decision that already has the force of res judicata? (2) Do Articles 4 and 17 of Directive [2004/25] – read in the light of the principle of effectiveness under EU law – preclude an interpretation according to which a decision having the force of res judicata taken by the supervisory authority pursuant to Article 4 of Directive [2004/25] by means of which a legal person’s breach of national provisions adopted in implementation of Directive [2004/25] was established is not given binding effect in the context of proceedings for an administrative penal sanction subsequently conducted by that supervisory authority against the body authorised to represent that legal person, as a consequence of which that legal person (the body) once again has all the factual and legal pleas and evidence available to it to challenge the breach of law established in the decision that already has the force of res judicata? (3) (If Question 1 is answered in the negative) Does Article 47 of the [Charter] preclude a national practice according to which a decision having the force of res judicata taken by the supervisory authority pursuant to Article 4 of Directive [2004/25] by means of which a natural person’s breach of national provisions adopted in implementation of Directive [2004/25] was established is given binding effect in the context of administrative-penal proceedings subsequently conducted by that supervisory authority against that same person, with the result that that person is prevented from challenging, in law and fact, the breach of law already established with the force of res judicata? (4) (If Question 2 is answered in the negative) Does Article 47 of the [Charter] preclude a national practice according to which a decision having the force of res judicata taken by the supervisory authority pursuant to Article 4 of Directive [2004/25] by means of which a legal person’s breach of national provisions adopted in implementation of Directive [2004/25] was established is given binding effect in the context of administrative-penal proceedings subsequently conducted by that supervisory authority against the body authorised to represent that legal person, with the result that that person (the body) is prevented from challenging, in law and fact, the breach of law already established with the force of res judicata?’