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Expert Witness

U.S. Legal Support

Best Practices for Preparing an Expert Witness for Deposition

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As a trial attorney, you’ll often enlist expert witnesses to evaluate claims, clarify complex evidence, write an expert witness report, and offer authoritative opinions. Because time and money can be tight during trial prep,...more

EDRM - Electronic Discovery Reference Model

The Problem of Deepfakes and AI-Generated Evidence: Is It Time to Revise the Rules of Evidence? – Part One

On April 19, 2024, the Advisory Committee on Evidence Rules for federal courts faced a critical question: Does AI-generated evidence, including deepfakes, demand new rules? The Committee’s surprising answer—’not yet.’ Was...more

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

IMS Legal Strategies

5 Tips for Med Mal Expert Testimony from a Hot Seat Veteran

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As a presentation technology consultant, I have been sitting in the hot seat for almost 25 years. I average one trial a month with about 75% being medical malpractice (med mal) cases. I work with both plaintiff and defense...more

WilmerHale

Federal Circuit Patent Watch: An Expert Need Not Have Acquired the Requisite Skill Level Prior to the Time of the Invention

WilmerHale on

Precedential and Key Federal Circuit Opinions - WISCONSIN ALUMNI RESEARCH FOUNDATION v. APPLE INC. [OPINION] (2022-1884, 8/28/2024) (Prost, Taranto, and Chen) - Prost, J. The Court affirmed two final judgments of the...more

Fenwick & West LLP

Federal Circuit Lays Out When Expert Witnesses in Patent Litigation Must Have Required Expertise

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In patent litigation, expert witnesses play a crucial role in providing specialized knowledge to the court. In a recent case where Osseo Imaging LLC sued Planmeca USA Inc. for patent infringement, the Federal Circuit...more

Holland & Hart - Your Trial Message

Witnesses: Be Tough to Cross

Cross-examination is a big deal for a key witness. I’ve noticed in trial that it gets some added attentiveness from the jury. Knowing that they’re now seeing one side pitted directly against the other, jurors will sit forward...more

Knobbe Martens

An Expert Witness Need Not Have Been a Posita at the Time of the Invention

Knobbe Martens on

Before Dyk, Clevenger, and Stoll.  Appeal from the United States District Court for the District of Delaware. Summary: An expert witness can testify from the perspective of a POSITA at the time of the invention even if they...more

Miles Mediation & Arbitration

Litigating Healthcare Malpractice Cases: Challenges for Plaintiff’s and Defense Counsel

Even if they involve similar facts or injuries, no two medical malpractice cases are alike. Juries are laypeople who must consider testimony from medical experts and other witnesses and determine credibility and competence....more

Fox Rothschild LLP

No, Courts Cannot Just Adopt A Court Appointed Expert’s Opinion Without a Cross Examination

Fox Rothschild LLP on

The Rules of Court clearly allow a Family Part Judge to appoint their own expert on any issues, whether custody or economic issues, in order to aid the court in making a decision on an issue before the Court. The Court rule...more

IMS Legal Strategies

Adapting Trial Graphics to Jurors’ New Media Expectations

IMS Legal Strategies on

Trial graphics are instrumental in conveying your story to today’s jurors. Presenting an understandable argument to a jury usually involves technology-driven visual communication in the form of demonstrative exhibits and...more

IMS Legal Strategies

Should Your Gen Z Attorney Be Your Hot Seat Operator?

IMS Legal Strategies on

Gen Z attorneys are often extremely valuable, hard-working additions to your trial team. We are sure many of our clients would agree, as we worked alongside quite a few truly impressive young trial attorneys....more

Cooley LLP

A Sword and A Shield: How SCOTUS Expert Testimony Rulings May Benefit Corporate Defendants

Cooley LLP on

The US Supreme Court decided several criminal procedure cases during the 2023 – 2024 term – including Diaz v. United States, 144 S. Ct. 1727 (2024) and Smith v. Arizona, 144 S. Ct. 1785 (2024) – which have relevance and...more

Ankura

Legal Battles Over AI and Copyright: Emerging Trends in Intellectual Property Disputes

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As artificial intelligence (AI) technology advances, it brings with it complex legal challenges, particularly in the realm of intellectual property (IP). Recent high-profile legal disputes have brought to the forefront the...more

Womble Bond Dickinson

Junk Science in the Courtroom: Prevention is Better than Cure

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When scientific evidence is in play, it is often assumed that the most frequently cited articles are published in the most elite journals. However, this is not necessarily true. A journal is ranked according to its impact...more

J.S. Held

Case Law Update: Timing of Technical Expert Analysis of Non-Infringing Alternatives in Smart Path Connections

J.S. Held on

Recent case law may impact the timing of defendant technical expert analysis and opinion regarding non-infringing alternatives in patent infringement litigation. On March 13, 2024, Magistrate Judge Roy S. Payne, in the United...more

Baker Botts L.L.P.

Intellectual Property Report - August 2024

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Be an Expert: Precedential PTAB Decision on Conclusory Expert TestimonyStutti TilwaA recent precedential decision from the Patent Trial and Appeal Board (“PTAB”) may serve as a warning for those parties who plan on relying on...more

Baker Botts L.L.P.

Be an Expert: Precedential PTAB Decision on Conclusory Expert Testimony

Baker Botts L.L.P. on

A recent precedential decision from the Patent Trial and Appeal Board (“PTAB”) may serve as a warning for those parties who plan on relying on expert declarations in their inter partes reviews (“IPR”). On August 24, 2022, the...more

Farella Braun + Martel LLP

What Have We Learned From the First Six Months Under the New Federal Rule of Evidence 702?

As patent practitioners know, Daubert motions can be some of the most hotly contested and pivotal motions in the life of a patent case. These motions are used to exclude testimony from an opponent's expert witness, usually on...more

Arnall Golden Gregory LLP

Government Investigations Team Insights - July 2024

AGG’s Government Investigations Team Insights provides periodic updates covering legal and regulatory topics. Our team, which includes former federal prosecutors, SEC enforcement attorneys, and federal agency attorneys, has...more

Faegre Drinker Biddle & Reath LLP

Plaintiffs’ Second Bite at the General Causation Apple Fares No Better Than the First in Acetaminophen MDL

In December 2023, back when the ink was still drying on the amendments to Federal Rule of Evidence 702, the Southern District of New York excluded all five general causation experts proffered by plaintiffs in the In re...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

Troutman Pepper

Expert on Proxy Statement Disclosures Excluded Under Daubert

Troutman Pepper on

A recent decision by Judge Novak in a securities case provides some helpful reminders on expert witness practice, particularly in commercial litigation, in the EDVA....more

Marshall Dennehey

Expert Testimony on Permanency of Respiratory Injury Requires Reference to Empirical Data

Marshall Dennehey on

Garced v. United Cerebral Palsy of Phila., 307 A.2d 103 (Pa. Super. 2023) - This matter involved a plaintiff’s claim that he developed reactive airway disease syndrome (RADS) from exposure to the fogging disinfectant...more

Holland & Knight LLP

Supreme Court's Decision in Diaz Could Be a Boon for Criminal Healthcare Fraud Defendants

Holland & Knight LLP on

A defendant's mens rea, or intent, is almost always a contested element in a criminal prosecution, particularly in criminal healthcare fraud cases that frequently arise out of complex legal and regulatory regimes....more

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