There is no difficulty in stating the principles; their application to the facts of a particular case is not always easy. Also it is necessary to keep in mind the caveat by Jacobs J in Cretazzo v Lombardi (1975) 13 SASR 4 at 16. His Honour sounded what he described as ' a note of cautious disapproval ' of applications to apportion costs according to the success or failure of one party or the other on the various issues of fact or law which arise in the course of a trial. His Honour commented:
But trials occur daily in which the party, who in the end is wholly or substantially successful, nevertheless fails along the way on particular issues of fact or law. The ultimate ends of justice may not be served if a party is dissuaded by the risk of costs from canvassing all issues, however doubtful, which might be material to the decision of the case. There are, of course, many factors affecting the exercise of the discretion as to costs in each case, including in particular, the severability of the issues, and no two cases are alike. I wish merely to lend no encouragement to any suggestion that a party against whom the judgment goes ought nevertheless to anticipate a favourable exercise of the judicial discretion as to costs in respect of issues upon which he may have succeeded, based merely on his success in those particular issues.
8 In Hughes the applicant failed on more issues than he succeeded, and by some margin, although he succeeded in his primary aim. Toohey J considered that it was relevant, but not conclusive, to consider how much hearing time was taken up with evidence and submissions relating to those issues on which the applicant failed. That was not an easy task because much of the evidence bore upon more than one cause of action. His Honour approached the matter on the basis that the applicant had succeeded substantially in what he set out to achieve. Despite this, his Honour held that the applicant had failed on some issues in circumstances which made it not only appropriate that he should not have the costs of those issues, but that there should be some compensation to the respondents for the time taken in meeting those issues both prior to and at the hearing. His Honour considered that justice would be served by awarding the applicant 75 percent of his costs.