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Expert Witness Evidence

J.S. Held

The Case for Neurodevelopmental Expertise in the Courtroom

J.S. Held on

The boundary between adolescence and adulthood is a construct of societal and legal importance, particularly when considering legal culpability. Given the potential legal ramifications, the placement of such a boundary should...more

IMS Legal Strategies

Effective Strategies for Daubert and Robinson Challenges

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In high-stakes litigation, expert testimony that cannot withstand a Daubert or Robinson challenge can derail even the most well-prepared case. A failed Daubert or Robinson challenge can leave attorneys without their key...more

Miller Canfield

Navigating the Survey Seas: The Timing and Impact of Survey Evidence in Trademark Litigation

Miller Canfield on

In the world of trademark litigation, surveys play a crucial role in tackling issues like confusion, secondary meaning, and dilution. However, the timing of survey disclosures often sparks heated debates, as neither side...more

McDermott Will & Schulte

En Banc Federal Circuit Cools Damages Award Because of Improper Expert Testimony

In an en banc decision in EcoFactor, Inc. v. Google LLC, the US Court of Appeals for the Federal Circuit concluded that the district court abused its discretion by admitting testimony from a damages expert that a lump-sum...more

Pullman & Comley - For What It May Be Worth

AI In Real Estate Appraisal: Legal Skepticism, Industry Adoption, And An In-House Experiment On Its Accuracy

As the capabilities of artificial intelligence (AI) rapidly change, the laws regarding AI use likewise adapt. For instance, the New York Surrogate’s Court recently grappled with an expert witness’ use of AI to support his...more

Zelle  LLP

Federal District Court Holds Engineer Is Qualified Enough, and His Methods Are Reliable Enough, to Testify to Date Wind and Hail...

Zelle LLP on

In Wings Platinum, LLC v. Westchester Surplus Lines Ins. Co., No. 3:23-CV-2145-D, 2025 WL 391388 (N.D. Tex. Feb. 4, 2025), a federal district court recently held that an engineer with one year and one month of experience...more

Purpose Legal

The Role of Digital Forensics Expert Witnesses

Purpose Legal on

In the digital age, the courtroom has evolved. It’s no longer just about physical evidence and eyewitness accounts. Today, digital evidence plays a crucial role in many legal proceedings. Enter the digital forensics expert...more

Greenbaum, Rowe, Smith & Davis LLP

New Jersey Supreme Court Opinion Refines Affidavit of Merit Requirements for Malpractice Case Against Physician Certified in...

In another in the seemingly endless series of decisions parsing the interpretation of the statutory requirements for an affidavit of merit in medical liability claims, on January 22, 2025 the New Jersey Supreme Court issued...more

Faegre Drinker Biddle & Reath LLP

Foundation, Not Façade — The Fifth Circuit Affirms the Proper Basis Requirement for Admissibility of Expert Opinions in Newsome v....

In a toxic tort case, plaintiffs must establish general causation. If a substance is incapable of causing the type of injury plaintiff claims, then it certainly didn’t cause theirs. Under Texas law, toxic tort plaintiffs must...more

Faegre Drinker Biddle & Reath LLP

To Depose or Not to Depose: When Challenging Opposing Nonretained Experts Becomes Challenging

Federal Rule of Civil Procedure 26(a)(2) requires parties to disclose the opinions of experts who may present evidence at trial. If the disclosures are inadequate, Rule 37(c) requires exclusion of the opinions “unless the...more

Faegre Drinker Biddle & Reath LLP

Plaintiff’s Half-Baked Attempt to Prove Defect and Causation With Photographs of Moldy Bread Shows the Knead for Expert Testimony

A picture may be worth a thousand words, but that doesn’t make the camera an expert witness. Product liability actions usually require expert testimony to prove defect and causation. Pictures, like other documents, can be...more

Carlton Fields

Florida Appeals Court Decisions: Week of November 11-15, 2024

Carlton Fields on

U.S. Eleventh Circuit Court of Appeals - Baxter v. Hendren - appellate jurisdiction, not pursuing claim, § 1983, excessive force, battery...more

EDRM - Electronic Discovery Reference Model

From Deepfakes to Digital Doubt: How AI Is Challenging the Future of Evidence

ComplexDiscovery’s Editor’s Note: Generative AI is reshaping industries, and the legal community is facing pressing challenges, particularly concerning the authenticity of digital evidence. As AI technology continues to...more

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

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

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

Goodwin

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

Goodwin on

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

Weber Gallagher Simpson Stapleton Fires &...

Appellate Court Affirms Judge’s Discretion in Findings of Fact and Credibility

On June 24, 2024, the Superior Court of New Jersey Appellate Division rendered an unpublished decision that reiterated the significant deference given to Workers’ Compensation Judges (WCJ) in their assessment of medical facts...more

Cooley LLP

The Dangers of Interfering with Expert Evidence

Cooley LLP on

The recent decision in Glover and Another v. Fluid Structural Engineers & Technical Designers Ltd and Others should serve as a warning to practitioners to pay heed to the strict rules regarding expert evidence and, in...more

Arnall Golden Gregory LLP

"If You Most Know, You Know”: Expert Testimony That “Most” Drug Couriers Know They’re Carrying Drugs Allowed to...

If you know, you know. The government’s less familiar version — if most know, the defendant knows — just got a boost from the Supreme Court of the United States, which recently held that Federal Rule of Evidence 704(b) did...more

Miller Canfield

Junk Science or Relevant Evidence: Supreme Court Says Experts May Now Aid in Determining Criminal Intent

Miller Canfield on

In criminal cases, oftentimes the most significant element in dispute is whether the defendant harbored the intent to “knowingly” or “willfully” violate the criminal law at issue.  If the defendant denies that he knew what he...more

Faegre Drinker Biddle & Reath LLP

Northern District of Illinois Holds that Seventh Circuit Precedent is Incompatible with Rule 702 as Amended

In explaining the December 2023 amendments to Federal Rule of Evidence 702, the Advisory Committee called out several ways in which “many courts” had “incorrectly” applied Rule 702 and failed to adequately discharge their...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

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