Lehman sues over £177 million fraud

An interesting principle. If people claiming to be your "employees" [or even your employees] sell a fraudulent product, are you responsible for the losses suffered by the victim? Caveat Emptor really is dead and buried as a principle here. At least Lehman are suing in a Japanese court. they'd have won hands down in Manhattan...which begs the question. Why are they suing in Japan? Answers on a postcard please to Marubeni.