Law360, New York (September 7, 2007, 12:00 AM EDT) -- American investment firm Calyon, which has sued rival Mizuho Securities USA PLC for allegedly stealing secret documents that gave it access to a large portion of Calyon's business, traded motions with Mizuho last week over the inclusion of evidence that Mizugo says shows Calyon engaging in “the very conduct that it labels as improper.”
Mizuho's argument relies on the doctrine of “unclean hands,” whereby a party is estopped from suing over conduct that it participated in itself.
The evidence has to do to with Calyon's purportedly...
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