Challenge-history dataset

A structured dataset of documented challenges to expert testimony — one row per documented challenge.What each row containsExpert, case, court, year, side, outcome, the court's stated reason, and a source link.CoverageCoverage: federal published opinions and publicly filed documents, forensic economics, 1992–2025. The founding dataset is built from documented challenges compiled from opinions actually opened and read — one row per challenge: expert, case, court, year, side, outcome, the court's stated reason, source link.Sample rowsStan V. Smith · Mercado v. Ahmed · 7th Cir. · 1992 · Plaintiff · Excluded in full (hedonic testimony) · Court: method lacked basic agreement among economists and did not qualify under Rule 702; exclusion affirmed on appeal · Source: JustiaStan V. Smith · Do v. Blessing Hospital · C.D. Ill. · 2025 · Plaintiffs · Excluded in part · Court: housekeeping/household-management testimony allowed ($378,775 stood); advice/counsel/guidance, hedonic-damages, and loss-of-society testimony excluded; present value of future life care not challenged · Source: JustiaStan V. Smith · Passmore v. Barrett · N.D. Ind. · 2015 · Plaintiff · Motion denied after proponent narrowed proposed testimony · Court: hedonic and loss-of-society categories withdrawn by agreement before any ruling — not excluded; late Rule 702 argument waived and narrowed testimony found reliable · Source: JustiaBefore you registerThe dataset over-represents federal and appealed cases. It contains no unpublished rulings, no settled-case testimony, and no unfiled depositions.Founding dataset — in preparationThe founding dataset is being compiled now, one documented challenge at a time, from opinions actually opened and read. Delivery terms — a delivery date and a minimum record count — will be confirmed in writing to registered firms before any purchase opens. No payment is taken until delivery terms are confirmed in writing.

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