"A person domiciled in a Member State may also be sued: where he is one of a number of defendants, in the courts for the place where any one of them is domiciled, provided the claims are so closely connected that it is expedient to hear and determine them together to avoid the risk of irreconcilable judgments arising from separate proceedings."
"Where someone has purported to comply with either undertakings or orders to make disclosure by affidavit, we doubt whether it is right to place the deponent in the position that unless he is prepared to be cross-examined on his affidavits they count for nothing at all. On the other hand, without cross-examination, the court is entitled to attach little weight to them: see Comet Products UK v Hawketts Plastics Ltd[1971] 2QB67 CA."