"... where a plaintiff had behaved reasonably in suing both defendants he should not normally end up paying costs to either party even though he succeeded only against one of the defendants." . . . . 22. There is no doubt that the jurisdiction to make a Bullock or Sanderson order has survived the introduction of the CPR, though the exercise of discretion to make such an order must be guided by the overriding objective and the specific provisions of Rule 44.3. The jurisdiction is a useful one. It is designed to avoid the injustice that when a claimant does not know which of two or more defendants should be sued for a wrong done to the claimant, he can join those whom it is reasonable to join and avoid having what he recovers in damages from the unsuccessful defendant eroded or eliminated by the order for costs against the claimant in respect of his action against the successful defendant or defendants. However, it must also be recognised that it is a strong order, capable of working injustice to the defendant against whom the claim has succeeded, to be made liable not only for the claimant's costs of the action against that defendant, but also the costs of the other defendants whom the claimant has chosen to join but against whom the claimant has failed. "... where a plaintiff had behaved reasonably in suing both defendants he should not normally end up paying costs to either party even though he succeeded only against one of the defendants." 23. The court has a wide discretion over costs, and even where a claimant reasonably brings proceedings against two separate defendants and succeeds against one and fails against the other, there is no rule of law compelling the court to make a Bullock or Sanderson order (see Hong v A&R Brown Ltd[1948] 1 KB 515 ). That case demonstrates that the court must also consider whether it would work injustice on an unsuccessful defendant to make him liable for the costs of another defendant against whom the claimant has failed. 24. The circumstances in which the court makes such an order are stated in the White Book 2004, paragraph 44.3.8, as follows: "