Allied Maples Group Ltd v Simmons & Simmons (a firm)

Richards v Speechly Bircham LLP [2022] EWHC 935 (Comm): "Where causation is dependent upon the acts of a third party ..., the balance of probabilities test does not apply and instead he '…must prove as a matter of causation that he has a real or substantial chance…' that the third party would have acted as the claimant contends: per Stuart-Smith LJ in Allied Maples v Simmons & Simmons at p.1614D."