Written by attorneys · grounded in primary & secondary sources — see below
A showing that materials prepared in anticipation of litigation are necessary to prepare a party's case and cannot be obtained through other means without undue hardship.
Sources & Authorities
How it applies
Common Examples
2
Witness Statement After Accident
Simon Stern sues Skyline Construction after a scaffold collapse. Skyline's insurer interviewed a bystander and prepared a transcript shortly after the incident. Simon moves to compel the transcript. He shows that the bystander has since moved abroad and cannot be located for deposition. The court orders production because Simon has demonstrated substantial need and no substantial equivalent is available without undue hardship.
Corporate Investigation Memos
Sophia Singh sues Sterling Dynamics for employment discrimination. Sterling's in-house counsel directed mid-level managers to prepare memos summarizing employee interviews after receiving a demand letter. Sophia seeks the memos. She shows that several interviewed employees have left the company and cannot be reached. The court finds substantial need and orders production of the factual portions while protecting any attorney mental impressions.
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Cases
Federal Rules
Casebooks
Hornbooks
Course Outlines
Study Supplements
Common questions
Frequently Asked
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What two elements must a party establish to overcome work-product protection with a showing of substantial need?+
The party must show both that the materials are necessary to prepare its case and that it cannot obtain their substantial equivalent by other means without undue hardship. Mere relevance is insufficient. The showing must be made by affidavit or other evidence when moving to compel.
Supporting sources
Does substantial need allow discovery of an attorney's mental impressions or legal theories?+
No. Even when substantial need is shown, the court must protect against disclosure of mental impressions, conclusions, opinions, or legal theories of a party's attorney or representative. Opinion work product receives heightened protection and is rarely discoverable.
Supporting sources
Can a witness's death or unavailability alone establish substantial need?+
No. Death or unavailability is relevant but does not automatically satisfy the standard. The requesting party must still show that the specific materials are necessary and that no substantial equivalent can be obtained without undue hardship.
Supporting sources
How does substantial need interact with the ordinary-course-of-business exception to work-product protection?+
If documents were not prepared in anticipation of litigation, they are not work product and substantial need need not be shown. When documents qualify as work product, the requesting party must still make the substantial-need showing regardless of any ordinary business purpose.
Supporting sources
449 U.S. 383 (1981)Evidence
…processes. The Rule permits disclosure of documents and tangible things constituting attorney work product upon a showing of substantial need and inability to obtain the equivalent without undue hardship. This was the standard applied by the Magistrate, 78-1 USTC ¶ 9277, p. 83,604. Rule 26 goes on, however, to state that "[i]n…
Professional ResponsibilityClient confidentiality · Work-product doctrineMPREFoundational