“It amounts to saying that because the main agreement and the arbitration agreement were bound up with each other, the invalidity of the main agreement should result in the invalidity of the arbitration agreement. The one should fall with the other because they would never have been separately concluded. But section 7 in my opinion means that they must be treated as having been separately concluded and the arbitration agreement can be invalidated only on a ground which relates to the arbitration agreement and is not merely a consequence of the invalidity of the main agreement.”
“The appellants’ argument was not that there was no contract at all, but that they were entitled to rescind the contract including the arbitration agreement because the contract was induced by bribery. Allegations of that kind, if sound, may affect the validity of the main agreement. But they do not undermine the validity of the arbitration agreement as a distinct agreement. The doctrine of separability requires direct impeachment of the arbitration agreement before it can be set aside. This is an exacting test. The argument must be based on facts which are specific to the arbitration agreement. Allegations that are parasitical to a challenge to the validity to the main agreement will not do. That being the situation in this case, the agreement to go to arbitration must be given effect.”
“In every case it seems to me that the logical question is not whether the issue goes to the validity of the contract but whether it goes to the validity of the arbitration clause. The one may entail the other but, as we have seen, it may not. When one comes to voidness for illegality, it is particularly necessary to have regard to the purpose and policy of the rule which invalidates the contract and to ask … whether the rule strikes down the arbitration clause as well. There may be cases in which the policy of the rule is such that it would be liable to be defeated by allowing the issue to be determined by a tribunal chosen by the parties. This may be especially true of contrats d'adhésion in which the arbitrator is in practice the choice of the dominant party. Thus, saying that arbitration clauses, because separable, are never affected by the illegality of the principal contract is as much a case of false logic as saying that they must be. As Ralph Gibson LJ has pointed out the same is true of allegations of fraud. In deciding whether or not the rule of illegality also strikes down the arbitration clause, it is necessary to bear in mind the powerful commercial reasons for upholding arbitration clauses unless it is clear that this would offend the policy of the illegality rule. These are, first, the desirability of giving effect to the right of the parties to choose a tribunal to resolve their disputes and secondly, the practical advantages of one-stop adjudication, or in other words, the inconvenience of having one issue resolved by the court and then, contingently on the outcome of that decision, further issues decided by the arbitrator.”
“Is there anything in such a provision which would be undermined by allowing the issue of whether it applied to be determined by arbitration?”