Two Recent Cases Underscore the Importance of Highly Skilled Expert Witnesses on Causation

May 20, 2019
Megan A. Elliott
MGKF Litigation Blog

On April 9, 2019, Judge John Z. Lee of the District Court for the Northern District of Illinois, Eastern Division denied the City of Evanston’s motion for a preliminary injunction against two utility companies in a RCRA action that sought to compel the utility companies to investigate and remediate polycyclic aromatic hydrocarbon (PAH) contamination in the area.  After a lengthy evidentiary hearing spanning eight days, Judge Lee found that the city had failed to meet its overall burden of proving likelihood of success on the merits, in part because he believed one of the city’s main theories of contamination to be “simplistic.”  (Memorandum Opinion and Order, at *4, City of Evanston v. Northern Illinois Gas Company, No. 16 C 5692 at *19 (N.D. Ill. Apr. 9, 2019)). And on May 16, 2019, the Seventh Circuit Court of Appeals affirmed a similar decision in Varlen Corporation v. Liberty Mutual Insurance Company, No. 17-3212 (7th Cir. May 16, 2019), excluding an expert witness and granting summary judgment to the defendant because the expert's testimony regarding the cause of contamination was found to be unreliable, having failed to meet the Daubert standard.

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