“Subject to the following provisions of this section, any person liable in respect of any damage suffered by another person may recover contribution from any other person liable in respect of the same damage (whether jointly with him or otherwise).”
“A person is liable in respect of any damage for the purposes of this Act if the person who suffered it . . . . . is entitled to recover compensation from him in respect of that damage (whatever the legal basis of his liability, whether tort, breach of contract, breach of trust or otherwise).”
“I think it should be recognised that one is here concerned with a restitutionary remedy and that the appropriate questions are therefore, first, whether the defendant would be enriched at the plaintiff’s expense; secondly, whether such enrichment would be unjust; and thirdly, whether there are nevertheless reasons of policy for denying a remedy.”
“Without attempting any comprehensive analysis, it seems to me that the principle requires at least that the plaintiff should have sustained a loss through the provision of something for the benefit of some other person with no intention of making a gift, that the defendant should have received some form of enrichment, and that the enrichment has come about because of the loss.”