In the Supreme Court case of Asia Commercial Finance (M) Bhd lwn Kawal Teliti Sdn Bhd [1995] 3 MLJ 189, at 197-198, 198-199 and 199- 200, Peh Swee Chin FCJ has decided as follows: “What is res judicata? It simply means a matter adjudged, and its significance lies in its effect of creating an estoppel per rem judicatum. When a matter between two parties has been adjudicated by a court of competent jurisdiction, the parties and their privies are not permitted to litigate once more the res judicata, because the judgment becomes the truth between such parties, or in other words, the parties should accept it as the truth; res judicata pro veritate accipitur. The public policy of the law is that, it is in the public interest that there should be finality in litigation - interest rei publicae ut sit finis litium. It is only just that no one ought to be vexed twice for the same cause of action - nemo debet bis vexari proeadem causa. Both maxims are the rationales for the doctrine of res judicata, but the earlier maxim has the further elevated status of a question of public policy. … Thus, there are in fact two kinds of estoppel per rem judicatum. The first type relates to cause of action estoppel and the second, to issue estoppel, which is a development from the first type. The cause of action estoppel arises when rights or liabilities involving a particular right to take a particular action in court for a particular remedy are determined in a final judgment and such right of action, ie the cause of action, merges into the said final judgment; in layman's language, the cause of action has turned into the said S/N b9TtfyYNwkmqYiiRP2kjiQ final judgment. The said cause of action may not be relitigated between the same parties because it is res judicata. In order to prevent multiplicity of action and also in order to protect the underlying rationales of estoppel per rem judicatum and not to act against them, such estoppel of cause of action has been extended to all other causes of action (based on the same facts or issues) which should have been litigated or asserted in the original earlier action resulting in the final judgment, and which were not, either deliberately or due to inadvertence. … … On the other hand, the issue estoppel literally means simply an issue which a party is estopped from raising in a subsequent proceeding. However, the issue estoppel, in a nutshell, from a consideration of case law, means in law a lot more, ie that neither of the same parties or their privies in a subsequent proceeding is entitled to challenge the correctness of the decision of a previous final judgment in which they, or their privies, were parties. This sounds like explaining a truism, but it is the corollary from that statement that is all important and that could have given birth to the controversies alluded to above; the corollary being that neither of such parties will be allowed to adduce evidence or advance any argument to contradict such decision. …” (emphasis added).