Maryland Expert Witness Report Rules

Maryland mandates detailed expert witness reports for trial, emphasizing timely disclosures and compliance with procedural rules to avoid sanctions.

ByZach Barreto

Updated on

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In this article

Are Expert Witness Reports Required in Maryland?

Under Maryland law, expert witness reports are generally required through a mandatory discovery process outlined in Md. Rule 2-402(g)). Parties must disclose the identity of any expert expected to testify at trial and provide a detailed statement of the opinions the expert will give and the basis for those opinions. This requirement effectively necessitates an expert witness report or a detailed summary, known as "Rule 2-402(g) disclosures," which include the expert's qualifications, opinions, conclusions, and supporting facts. The timing of these disclosures is crucial. Maryland’s scheduling orders, issued under Rule 2-504, typically set strict deadlines for the plaintiff’s expert disclosures, often many months before trial. Expert depositions in Maryland are permitted following these required disclosures (Md. Rule 2-402(g), Md. Rule 2-421).

What is Required in a Maryland Expert Witness Report?

A Maryland expert witness report must thoroughly address several key components:

  • Opinions and Bases: A comprehensive statement of the expert's opinions and the bases for those opinions.
  • Data Considered: All data and information the expert relied upon in forming their opinions.
  • Exhibits: Any exhibits that will be used to summarize or support the opinions.
  • Qualifications: A summary of the expert’s qualifications, encompassing education, experience, and any other credentials.
  • Compensation: Details of the compensation to be paid to the expert for their services.

Maryland’s requirements align closely with federal standards but are tailored under state-specific procedural rules, emphasizing timely and complete disclosures.

Scope and Authorship of the Report

The expert witness, as the primary source of the opinions, typically drafts and signs the report. Attorney involvement is permissible but should not alter the expert's independent opinions. The involvement of counsel is generally confined to ensuring compliance with procedural requirements and assisting in the organization of information. The scope of the report may vary based on the nature of the expert testimony or the complexity of the case.

Missing, Deficient, and Untimely Reports

Failure to comply with expert disclosure requirements in Maryland carries significant consequences. As per Rule 2-402(g)(1) and Rule 2-433), Maryland courts have the authority to exclude the expert's testimony or impose other sanctions if a party fails to properly identify an expert or provide the substance of their testimony by the deadline. This enforcement ensures adherence to procedural timelines and maintains the integrity of the judicial process.

  • Potential Sanctions: Exclusion of testimony, monetary sanctions, or continuances.
  • Court Responses: Courts may issue orders that preclude testimony or enforce other penalties as deemed appropriate.

Original, Supplemental, and Rebuttal Reports

Maryland procedural rules acknowledge the need for various report types, although specific terms such as "supplemental" or "rebuttal" reports are not expressly used in the rules. The timing and purpose of any additional reports will depend on court orders or specific case requirements, allowing courts to address disputes over these filings on a case-by-case basis.

Relevant State Rules and Legal Requirements

The primary governing rules for expert witness disclosures in Maryland are Md. Rule 2-402(g)) and Md. Rule 2-504. These rules are shaped by Maryland’s civil procedure) framework and court interpretations, ensuring that expert disclosures are made early and comprehensively. Notably, Maryland’s approach emphasizes early identification and detailed summaries, contrasting with federal practices that may allow for later or more flexible disclosures.

  • Key Rules: Md. Rule 2-402(g), Md. Rule 2-504.
  • Judicial Interpretations: Maryland courts interpret compliance with these rules stringently, prioritizing early and complete disclosures to facilitate fair trial preparation.

In summary, Maryland mandates detailed expert witness reports as part of its discovery process, with strict adherence to procedural rules essential for compliance and the avoidance of sanctions.

About the author

Zach Barreto

Zach Barreto

Zach Barreto is a distinguished professional in the legal industry, currently serving as the Senior Vice President of Research at the Expert Institute. With a deep understanding of a broad range of legal practice areas, Zach's expertise encompasses personal injury, medical malpractice, mass torts, and defective products. His skills are particularly evident in handling complex litigation matters, including high-profile cases such as opioids litigation, NFL concussion litigation, California wildfires, 3M earplugs, Elmiron, transvaginal mesh, Roundup, Camp Lejeune, hernia mesh, IVC filters, Paraquat, Paragard, talcum powder, and Zantac.

Under his leadership, the Expert Institute’s research team has expanded impressively from a single member to a robust team of 100 professionals over the last decade. This growth reflects his ability to navigate the intricate and demanding landscape of legal research and expert recruitment effectively. Zach has been instrumental in working on nationally significant litigation matters, including cases involving pharmaceuticals, medical devices, toxic chemical exposure, and wrongful death, among others.

At the Expert Institute, Zach is responsible for managing all aspects of the research department and developing strategic institutional relationships. He plays a key role in equipping attorneys for success through expert consulting, case management, strategic research, and expert due diligence provided by the Institute’s cloud-based legal services platform, Expert iQ. Zach holds a Bachelor's Degree in Political Science and European History from Vanderbilt University.

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