NEW ORLEANS - A federal magistrate judge in Louisiana presiding over a trademark infringement lawsuit on Nov. 22 ruled that a third-party defendant's deletion of a folder containing 39 emails warranted the imposition of an adverse inference jury instruction but that its CEO's destruction of an iPad and desktop computer did not result in prejudice (Premier Dealer Services Inc. v. Troy Duhon, et al., No. 12-1498, E.D. La.; 2013 U.S. Dist. LEXIS 166661).