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Expert Witness Blog

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Judicial Scrutiny of Appraisal & Valuation Expert Witness Testimony in Property Disputes: Lessons from In re Marriage of Lietz

In the recent California Court of Appeal decision, In re Marriage of Lietz, 2024, the court addressed the pivotal role of the Appraisal & Valuation Expert Witness in the division of marital property, specifically the valuation of the family home during dissolution proceedings. Background and Parties Diana and Andreas Lietz…

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Utilities Appraisal Expert Witness Testimony Shapes Eminent Domain Valuation in Landmark Nebraska Case

In the eminent domain dispute of Iske v. Metropolitan Utilities District of Omaha, 183 Neb. 34 (1968), the Nebraska Supreme Court addressed the admissibility and reliability of testimony from a Utilities Appraisal Expert Witness in determining the fair market value of land condemned for public utility use. This case remains…

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Tax Expert Witness Testimony Under Scrutiny: Oklahoma Supreme Court Clarifies Discovery Limits for Expert Witness Financial Records

In the recent decision of JOLLEY v. McCLAIN, Oklahoma Supreme Court 2025, the Oklahoma Supreme Court addressed the scope of permissible discovery into the financial records of a Tax Expert Witness in condemnation proceedings. The case provides critical guidance on the intersection of expert witness bias, discovery rights, and the…

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Art Recovery Investigation Validates Family’s Ownership Claims: Antiques, Art, & Collectibles Appraisal Expert Witness Testimony Proves Decisive in Christie’s Auction House Dispute

The complex world of art authentication and ownership disputes came into sharp focus in Kozar v. Christie’s, Inc., New York Other Courts 2011, where an Antiques, Art, & Collectibles Appraisal Expert Witness played a crucial role in establishing the rightful ownership of a valuable painting that had been consigned to…

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Import/Export Expert Witness Testimony Shapes Outcome in Libas, Ltd. v. United States—A Critical Analysis of Expert Witness Reliability

In the pivotal case of Libas, Ltd. v. United States, 193 F.3d 1361 (Fed. Cir. 1999), the role of the Import/Export Expert Witness was central to the dispute over the classification of imported fabric and the reliability of expert testimony in customs litigation. Background and Facts Libas, Ltd., an importer…

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Case Summary Involving a Chemicals Expert Witness

  Introduction In the recent case of Monsanto Company v. Hardeman, No. 19-16636 (9th Cir. 2023), the testimony of a Chemicals Expert Witness played a pivotal role. This case revolved around claims that Monsanto’s herbicide, Roundup, caused non-Hodgkin lymphoma in the plaintiff, Edwin Hardeman. Background of the Case Edwin Hardeman…

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