In re Grand Jury

In re Grand Jury is a significant U.S. Supreme Court case decided on January 23, 2023. The case arose when an unnamed law firm was held in contempt for refusing to comply with a federal grand jury subpoena demanding documents related to a client investigation. The firm argued that the documents contained dual-purpose communications—advice involving both legal and non-legal (e.g., business or tax) matters—protected by attorney-client privilege. The central legal question was which standard courts should apply to determine if such mixed-purpose communications are privileged. The Supreme Court unanimously clarified the test, holding that a communication is privileged if obtaining or providing legal advice was a “primary purpose” of the communication, meaning it is sufficient if a legal purpose is one of the significant motivations, even if it is not the sole or predominant purpose.

The U.S. Supreme Court unanimously ruled in favor of adopting a broad “primary purpose” test. The Court held that attorney-client privilege applies to dual-purpose communications if a “primary purpose” of the communication is to obtain or provide legal advice, even if that legal purpose is not the sole or predominant driving factor. The ruling vacated the lower court’s contempt order and clarified a longstanding circuit split.

Whether dual-purpose communications, which contain both legal and non-legal advice, are protected by attorney-client privilege, and which legal standard (the "primary purpose" test versus a stricter "predominant purpose" test) courts should apply to determine the privilege's applicability in a grand jury context.

The ruling provides significant clarity and robust protection for attorney-client communications, greatly benefiting in-house corporate counsel and law firms that routinely provide integrated legal and business advice. It strengthens the shield against compelled disclosure during grand jury investigations and white-collar criminal defense, encouraging fuller and more candid discussions between attorneys and clients. The decision harmonizes the federal standard, reducing forum-shopping and promoting predictability in complex, cross-jurisdictional corporate compliance and legal risk management scenarios.