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Expert Witness Admissible Evidence

Faegre Drinker Biddle & Reath LLP

Can a Treating Physician’s Medical Testimony Be “Lay Opinion”? Divided Sixth Circuit Panel Disagrees on Where to Draw the Line

Federal Rules of Evidence 701 and 702 govern the admissibility of lay and expert opinion testimony, respectively, in federal courts. Rule 701(c) helps paint the line between the two, providing that an opinion “based on...more

Goodwin

Opening the Black Box of Generative AI: Explainability in Bankruptcy Cases

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US courts are issuing guidelines to ensure litigators disclose any use of generative AI in legal proceedings. By now, most of us have heard a story about the misuse of generative AI in the practice of law: the attorney...more

Walkers

Fair treatment of expert evidence: Tui UK Ltd (respondent) V Griffiths (appellant)

Walkers on

In our recent article covering litigation privilege and its reach to expert support (available here) we considered whether litigation privilege may be claimed over all the correspondence with a third party expert / a...more

Holland & Knight LLP

What Is "Natural?"

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When it comes to consumer class action litigation, what type of evidence is required to show that labeling nutrition bars as "all natural" violates false advertising and consumer protection laws? According to the plaintiffs...more

Genova Burns LLC

New Jersey Supreme Court Rules Drug Recognition Expert Testimony Admissible Under the Daubert-Accutane Standard

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On November 15, 2023, the New Jersey Supreme Court released its decision on the much anticipated issue of whether Drug Recognition Expert (DRE) testimony is admissible under New Jersey Rule of Evidence 702. The Court...more

Esquire Deposition Solutions, LLC

Proposed Changes to Federal Expert Evidence Rule Are Already Having Impact

Significant revisions to the federal rule governing the admissibility of expert evidence will go into effect December 1. The evidence rule changes appear to raise the bar slightly for admission of expert evidence, requiring...more

Stark & Stark

Federal Court Upholds Admissibility of Diffusion Tensor Imaging Testimony

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The United States District Court for the Southern District of New York provided another victory for the admissibility of diffusion tensor imaging. Defendant moved in limine to preclude the trial testimony of four of the...more

Blake, Cassels & Graydon LLP

Court Strikes Expert Reports Pre-Trial in Complex Case

The Alberta Court of Queen’s Bench, in CNOOC Petroleum North America ULC v. 801 Seventh Inc., struck out material portions of two expert reports filed by the plaintiff on a pre-trial basis. This complex trial is scheduled for...more

McDonnell Boehnen Hulbert & Berghoff LLP

CVC Files Reply to Broad Opposition to CVC's Motion to Exclude Broad Evidence

On April 17th, CVC filed its Reply to Broad's Opposition (filed on April 9th) to CVC's Miscellaneous Motion No. 2 to Exclude Evidence filed (on April 2nd), in Interference No 106,155 between Senior Party The Broad Institute,...more

McDonnell Boehnen Hulbert & Berghoff LLP

HVLPO2, LLC v. Oxygen Frog, LLC (Fed. Cir. 2020)

Expert witness testimony is a frequent (almost ubiquitous) feature of patent litigation, if only because questions of the state of the art or the understanding of one having ordinary skill in the art are almost always at...more

Jones Day

ITC Excludes Expert Testimony for Violation of Ground Rules

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In a recently issued order, ALJ Lord granted-in-part and denied-in-part Respondents’ motion in limine to exclude certain testimony of Complainants’ expert. Certain Radio Frequency Microneedle Dermatological Treatment Devices...more

Jones Day

ITC Does Not Strictly Enforce the Daubert Standard for Expert Testimony

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In a recently issued pair of orders, ALJ Lord denied both Respondents’ and Complainants’ motions in limine to exclude certain expert testimony. Certain Radio Frequency Microneedle Dermatological Treatment Devices and...more

Carlton Fields

Supreme Court Of Florida Upholds The Frye Standard

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On October 15, 2018, in the matter of Richard Delisle vs. Crane Co., et al., the Supreme Court of Florida unequivocally reaffirmed that Frye remains the standard for the admission of expert testimony. This reaffirmation comes...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Exclusion of Evidence at the PTAB - Does it ever happen?

Experienced PTAB practitioners know that the Board rarely grants motions to exclude evidence in Post Grant proceedings. In this article, we look beyond the grim anecdotes and provide some statistics, as well as the Board’s...more

Knobbe Martens

Elbit Systems Of America, LLC v. Thales Visionix, Inc.

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Federal Circuit Summaries - Before Moore, Wallach, and Stoll. Appeal from the Patent Trial and Appeal Board. Summary: The PTAB is entitled to weigh the credibility of expert witnesses, and attorney argument cannot be...more

Foley & Lardner LLP

Wisconsin Supreme Court Addresses Expert Testimony Under Daubert

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Six years after the Wisconsin legislature amended Wis. Stat. § 907.02(1) to adopt the federal Daubert standard for admission of expert testimony, the Wisconsin Supreme Court applied the standard for the first time in a civil...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Perspectives On The PTAB - Inaugural Issue

We are pleased to share this Perspectives on the PTAB newsletter. Its content is directed toward providing information and analysis of the decisions made by the Patent Trial and Appeal Board. We hope that this newsletter...more

Sheppard Mullin Richter & Hampton LLP

U.S. Supreme Court’s Tyson Foods v. Bouaphakeo Opinion Reaffirms The Importance Of Challenging Plaintiff’s Experts In Class...

On March 22, 2016, the United States Supreme Court decided Tyson Foods, Inc. v. Bouaphakeo, et al., No. 14-1146, a class action under Rule 23 of the Federal Rule of Civil Procedure (“Rule 23”) and a collective action under...more

Jaburg Wilk

Expert Witnesses: Who Needs ’Em?

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Clients often ask whether retaining an expert witness is necessary in their case. And they are wise to ask, because experts are a critical part of many cases, but not all. As attorneys, we often retain an expert “because we...more

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