Subject: Causation

European Commission Updates Liability Rules to the Digital Age

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The European Commission adopted two proposals that adapt liability rules to the digital age, circular economy and the impact of global value chains. These proposals are related to the Revised Product Liability Directive, fit for the green and digital transition and global value chains, and the AI Liability Directive to provide easier access to redress.

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Ipse Dixit – It’s Not Just for Analytical Gaps Anymore

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There are few legal phrases more fun to say than “ipse dixit.” The phrase is most commonly used in motions to exclude experts who base their opinions on nothing more than their own say so.  As the Court noted in General Electric Co. v. Joiner, 522 U.S. 136 (1997), an ipse dixit – Latin for “he said it himself” – leaves an impermissible “analytical gap” between the expert’s opinion and the facts on which it is based.  But ipse dixit arguments can and should stretch beyond just the “basis” part of the expert argument. Courts should also exclude experts who provide unsupported and self-serving testimony to suggest that their method is accepted generally in the community.

That is precisely what happened in Knepfle v. J-Tech Corporation, 2022 WL 4232598, — F.4th — (11th Cir. 2022).  Plaintiff was injured in a motor vehicle accident when she ran her motorcycle into the side of a vehicle that had turned in front of her, causing her to be thrown from the motorcycle.  Although the helmet she was wearing protected her head during the initial impact with the other vehicle, she alleged that it came off and failed to protect her head when it struck the pavement.  She brought product liability claims against multiple defendants in the manufacturing and distributing chain of the helmet.

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Sue Generous and the Laws of Legal Physics: Preventing Asbestos Mission Creep in California Courts

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It is virtually a law of legal physics in California that liability tends to expand until a critical mass of appellate courts rule that it has reached its limit, or the Supreme Court puts up a stop sign (a vanishingly rare occurrence).

This judicial tendency reaches its zenith in asbestos litigation.  Asbestos cases feature a combination of factors that pressure-test the boundaries of traditional tort law.  Asbestos fibers, in most cases, are relatively fungible, and the exposures are anecdotal and undifferentiated.  The injuries have extremely long latency periods, leaving exposure details fuzzy, ancient lore.  The biological mechanisms are largely mysterious.  In many cases, the plaintiff can prove an asbestos injury but cannot reliably prove causation under traditional tort standards.

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Pathologist Stopped Short of Offering Could-Have, Should-Have Opinions

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In personal injury and wrongful death cases, the plaintiff bears the burden of proving medical causation, which almost universally requires testimony from a competent expert.  Some plaintiffs offer testimony from forensic pathologists—also known as medical examiners, or physicians specializing in postmortem cause-of-death determinations—to prove causation.  These forensic pathologists (or the parties proffering their testimony) may push evidentiary boundaries with respect to opinions corollary to their cause of death determinations. While some courts have allowed juries to hear these questionable corollary opinions, relying on cross examination to level the playing field, others have excluded such testimony on the basis of insufficient qualifications or lack of reliable methodology.  Recently, the Southern District of Georgia excluded a forensic pathologist’s opinions on both grounds in a wrongful death action. Although not a product liability case, the court’s well-reasoned holding is sure to affect product cases going forward.

In Griffin v. Coffee County et al., 2022 WL 2045650 (S.D. Ga. June 7, 2022), a man in custody at a county jail in Georgia died from a methamphetamine overdose. His estate brought claims for deprivation of rights and medical malpractice against the jail, the hospital, and various individuals associated with those entities. In support of its claims, the estate proffered testimony from a forensic pathologist who offered opinions about medical treatment.

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Expert’s Failure to Identify Product Defect in Pressure Cooker or Inadequacy in Warnings Leads to Summary Judgment

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It is axiomatic that a plaintiff must offer evidentiary support for each element of her claim in order to survive summary judgment. And a ubiquitous feature of product liability actions is the use of expert witnesses by both sides. These principles are, of course, related – the plaintiff usually must offer expert testimony in order to make a prima facie case, and the defense then attacks that prima facie case through expert testimony. But sometimes a plaintiff loses sight of the connection and, despite retaining an expert, fails to elicit the opinions she needs to make her case. As a recent decision from the Western District of Wisconsin illustrates, it pays for a defendant to carefully evaluate whether a plaintiff has checked all of the necessary boxes.

In Moore v. National Presto Industries, Inc., 2022 WL 1555875 (W.D. Wis. May 17, 2022), Plaintiff alleged that she was injured when she opened her pressure cooker while it was still pressurized, ejecting its contents onto her arm, causing burns. Plaintiff sued the cooker’s manufacturer, asserting strict liability claims for design defect and failure to warn as well as a claim for negligence. Defendant moved for summary judgment on each of these claims.

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Ninth Circuit Asks California Supreme Court to Clarify the Causation Standard Applicable When the Learned Intermediary Doctrine Applies

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How demanding is the causation standard in a California failure to warn claim when a learned intermediary testifies that he would have read and incorporated more stringent warnings if they had been available? Is the plaintiff required to show that the stronger warning would have altered the physician’s decision to prescribe the product? Or may the plaintiff establish causation by showing that the physician would have communicated the stronger warnings to the patient and that a prudent person in the patient’s position would have declined the treatment as a result?

The Ninth Circuit isolated this undefined causation standard in Himes v. Somatics, LLC, and certified the question to the California Supreme Court. After confirming that the learned intermediary doctrine is alive and well in California and that a failure to warn claim cannot survive when the learned intermediary does not read the warnings at all, the Ninth Circuit stopped short of defining the causation standard that applies when a learned intermediary does read the warnings.

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