The conditions for a Sanderson or Bullock order were recently restated by this court in State of Victoria v Horvath (No 2). As Vincent, J.A., with whom Winneke, P. and Chernov, J.A. agreed, put it:
'In general terms, a plaintiff who seeks to have the losing defendant pay the costs of the successful defendant pursuant to a Bullock or a Sanderson order must establish that, in the circumstances of the case, it would be reasonable and just for such an order to be made - see for example, Sanderso__n, Rei__d and Gould v. Vaggelas. Additionally, a court will ordinarily not make such an order unless a number of requirements are satisfied. For example, a costs order in the Bullock or Sanderson form will not be made if the plaintiffs' claims against the two or more defendants are not interdependent or are not, in essence, alternative claims. Thus, for example, in Norwest Refrigeration Services Pty. Ltd. v. Bain Dawes (W.A.) Pty. Ltd., the majority refused to make a Bullock order requiring the unsuccessful defendant (the Co-operative) to indemnify the plaintiff against the costs it was required to pay to the successful defendant (the insurer). Their Honours considered that the plaintiff's unsuccessful claim on the policy was "a straightforward action which was not interdependent with or in any real sense alternative to the claim against the Co-operative." See also in this regard Bankamerica. ...
If that requirement is satisfied, a plaintiff who seeks a Bullock or a Sanderson order must also ordinarily show that it was reasonable for him to have joined the successful defendant and that the conduct of the unsuccessful defendant was such as to make it just to require him to indemnify the successful defendant...'
In short an order will not ordinarily be made unless:
(a) the plaintiff's claims against the two defendants are interdependent or essentially alternative claims; and
(b) it is reasonable for the plaintiff to have joined the successful defendant and the conduct of the unsuccessful defendant has been such as to make the order just.
I do not consider that either of those conditions is satisfied in this case. As the Council submits, Mr Ballerini's claims against the Council and the Commission were not interdependent or alternative in the relevant sense. Mr Ballerini claimed to be entitled to recover against each defendant under individual duties of care which each was said to have owed him. The only interdependence between the claims was that some of the facts relied upon to establish liability against the Council were also relied upon to establish liability against the Commission. It was never a case of one or the other but not both being liable and indeed at trial Mr Ballerini recovered judgment
against both, in each case for the amount of his claim less a percentage for contributory negligence.[22]