“40. The Court has thus held that the principle of legal certainty requires, in particular, that the jurisdictional rules which derogate from the general rule laid down in Article 2 of the Brussels Convention should be interpreted in such a way as to enable a normally well-informed defendant reasonably to foresee before which courts, other than those of the State in which he is domiciled, he may be sued (GIE Groupe Concorde and Others, paragraph 24, and Besix, paragraph 26). 41. Application of the forum non conveniens doctrine, which allows the court seised a wide discretion as regards the question whether a foreign court would be a more appropriate forum for the trial of an action, is liable to undermine the predictability of the rules of jurisdiction laid down by the Brussels Convention, in particular that of Article 2, and consequently to undermine the principle of legal certainty, which is the basis of the Convention. 42. The legal protection of persons established in the Community would also be undermined. First, a defendant, who is generally better placed to conduct his defence before the courts of his domicile, would not be able, in circumstances such as those of the main proceedings, reasonably to foresee before which other court he may be sued. Second, where a plea is raised on the basis that a foreign court is a more appropriate forum to try the action, it is for the claimant to establish that he will not be able to obtain justice before that foreign court or, if the court seised decides to allow the plea, that the foreign court has in fact no jurisdiction to try the action or that the claimant does not, in practice, have access to effective justice before that court, irrespective of the cost entailed by the bringing of a fresh action before a court of another State and the prolongation of the procedural time-limits. 43. Moreover, allowing forum non conveniens in the context of the Brussels Convention would be likely to affect the uniform application of the rules of jurisdiction contained therein in so far as that doctrine is recognised only in a limited number of Contracting States, whereas the objective of the Brussels Convention is precisely to lay down common rules to the exclusion of derogating national rules.”