“I can see no objection on grounds of public interest to a claim that a civil case was lost because of the negligence of the advocate, merely because the case went to a full trial. In such a case the plaintiff accepts that the decision is res judicata and binding upon him. He claims, however, that if the right arguments had been used or evidence called, it would have been decided differently.”
“In my view these cases establish the following propositions. (a) A collateral attack on an earlier decision of a court of competent jurisdiction may be but is not necessarily an abuse of the process of the court. (b) If the earlier decision is that of a court exercising a criminal jurisdiction …. (c) If the earlier decision is that of a court exercising a civil jurisdiction then it is binding on the parties to that action and their privies in any later civil proceedings. (d) If the parties to the later civil proceedings were not parties to or privies of those who were parties to the earlier proceedings then it will only be an abuse of the process of the court to challenge the factual findings and conclusions of the judge or jury in the earlier action if (i) it would be manifestly unfair to a party to the later proceedings that the same issues should be relitigated or (ii) to permit such relitigation would bring the administration of justice into disrepute.”