9th Circuit Holds that Documents Delivered to Government Attorneys in Response to Grand Jury Subpoena Grand Jury Matters Subject to FRCrP Rule 6(e)'s Secrecy Requirement (2/3/26; 2/4/26)

I write today on facets of Rule 6(e)(2), Federal Rules of Criminal Procedure, relating to grand jury secrecy. Rule 6 may be viewed here. Rule 6(e)(2) in part relevant to this blog entry requires that Government personnel participating in a grand jury investigation “must not disclose a matter occurring before the grand jury." Rule 6(e)(2)(B).

In Kalbers v. Volkswagen AG, ___ F.4th ___ (9th Cir. 1/30/26), CA9 here and GS here [to come], the Court held in a FOIA proceeding that Rule 6(e)(2) applies to documents delivered in response to a grand jury subpoena. Professor Kalbers sought Volkswagen’s Counsel’s responsive “file” containing millions of documents that Volkswagen, a target or subject, delivered in response to the grand jury subpoena. I think the case assumes that at least some portion of the documents were never presented to, summarized, or otherwise considered by the grand jury. The Court held that subpoena-responsive documents are grand jury matters subject to Rule 6(e)’s secrecy requirement and therefore are not disclosable under FOIA. The reasoning appears solid to me. I won’t track the reasoning here because it is not necessary for the focus of this blog entry.

 An issue I have spent time on is whether documents delivered by a subject or target of a grand jury investigation to attorneys for the Government conducting a grand jury investigation without a grand jury subpoena can be subject to Rule 6(e). Would it matter whether the attorneys for the Government asked nicely (pretty please) or threatened a grand jury subpoena (or some shade of gray between those extremes)? Would it matter if the Government sent the request in a letter (like the Branerton letter that must precede formal discovery in Tax Court proceedings)? What if in such a letter (or other communication), the Government mentioned that the person from whom the documents were sought was a target or subject of a grand jury proceeding? What if the person from whom the documents were sought had earlier received a letter notifying of grand jury target or subject status and the Government attorneys' participation in that investigation (i.e., no notice that the DOJ attorneys were also conducting an independent investigation)?

A tangentially related issue to this is whether, in a tax crimes case, DOJ Attorneys have authority to conduct at the same time (i) a grand jury investigation of potential tax crimes; and (ii) an independent DOJ investigation of the same tax crimes? Such a parallel investigation would necessarily involve grand jury matters bleeding into the so-called independent DOJ tax crimes investigation. Is that an improper use of grand jury matters in violation of Rule 6(e)?