Trull v. Volkswagen
Facts
The Trull family was involved in a winter collision while riding in a Volkswagen Vanagon; one child died and two family members suffered severe brain injuries. In this products-liability action, plaintiffs alleged that the Vanagon's design enhanced their injuries, principally because it was a forward-control vehicle lacking sufficient frontal protection and because the rear bench seats had lap belts but no shoulder belts. Before trial, the Vanagon had been disposed of by the family's insurer, leaving Volkswagen unable to inspect the vehicle, including the seat belts whose post-accident condition plaintiffs wanted to prove through testimony. Plaintiffs also sought to introduce evidence concerning a later Volkswagen Eurovan design, expert testimony based on fatal-accident data was admitted for Volkswagen, and a diagram used by plaintiffs in an earlier lawsuit was admitted to show an inconsistent prior position about the crash angle.
Issue
Did the district court abuse its discretion in excluding or admitting the challenged evidence, including evidence affected by destruction of the Vanagon, Eurovan design evidence, expert testimony based on FARS data, evidence from a prior lawsuit, and agency correspondence? Also, under New Hampshire law in a crashworthiness case, must the plaintiff prove the specific nature and extent of enhanced injuries, or does the burden of apportionment shift to the defendant once the plaintiff proves causation?
Rule
A district court may impose spoliation sanctions, including exclusion of evidence, even absent bad faith if evidence was negligently mishandled and the opposing party is prejudiced. Public-agency data compilations may support expert testimony under Rules 803(8) and 703, and evidentiary rulings under Rule 403 are reviewed for abuse of discretion. Where state law on a dispositive and policy-sensitive issue is unsettled, a federal court sitting in diversity may certify the question to the state's highest court.
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If the manufacturer moves to exclude Lena's testimony about the buckle's post-crash condition, how should the court most likely rule?