United States v. Hubbell
Facts
While incarcerated, Webster Hubbell was served with a grand jury subpoena duces tecum demanding 11 broad categories of documents. He invoked the Fifth Amendment, then produced 13,120 pages of documents only after receiving a court order compelling production and granting immunity to the extent allowed by law; he also answered questions confirming that he had produced all responsive documents except privileged ones. The contents of those produced materials gave the Independent Counsel information that led to a second prosecution for tax-related crimes and mail and wire fraud. The Government acknowledged it could not show prior knowledge with reasonable particularity of the existence or location of the documents ultimately produced.
Issue
Whether the Fifth Amendment protects a witness from being compelled to identify and produce incriminating documents when the Government cannot describe them with reasonable particularity, and whether use and derivative-use immunity under 18 U.S.C. § 6002 bars the Government from using documents so produced to investigate and prosecute the witness. More specifically, the question was whether the Government made prohibited derivative use of the testimonial aspects of Hubbell's act of production.
Rule
Although the contents of voluntarily created documents are not privileged, the act of producing documents in response to a subpoena may itself be testimonial because it implicitly communicates that the documents exist, are in the witness's possession or control, and are authentic. When a witness is compelled to make that testimonial act under a grant of immunity, 18 U.S.C. § 6002 bars the Government from making any direct or indirect use of that compelled testimony or information derived from it, and under Kastigar the Government must prove that any evidence it uses is derived from sources wholly independent of the testimonial aspect of the act of production. The foregone-conclusion rationale applies only when the Government already knows of the existence and location of the documents such that the witness adds little or nothing to the Government's information.
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