The criminal subpoena rule is being rewritten to reach hearings, not just trials.

Rule 17 amendments are headed toward the Supreme Court

A proposed rewrite of Federal Rule of Criminal Procedure 17, the criminal subpoena rule, has cleared the Standing Committee and is moving through the Judicial Conference process. The federal judiciary lists December 1, 2027, as the earliest projected effective date.

That date is not fixed. The Judicial Conference must approve the amendments and transmit them to the Supreme Court. The Court must adopt them and transmit them to Congress. Congress could act otherwise. The judiciary's pending amendments page describes the date as "no earlier than" December 1, 2027, and warns that pending rules can be delayed or withdrawn.

Nothing changes yet. Current Rule 17 and existing local practice remain in effect.

The Advisory Committee on Criminal Rules met April 29, 2026, in Washington, D.C. It unanimously recommended final approval, with three changes to the published text and several revisions to the committee note. Its report to the Standing Committee is dated May 8, 2026. Judge Michael W. Mosman of the District of Oregon chairs the Advisory Committee.

The Standing Committee met June 3 and 4, 2026. It unanimously approved the amendments after rephrasing proposed paragraph (c)(6), making a minor stylistic change, and clarifying the committee note. Its September 2026 report recommends that the Judicial Conference approve the amendments and send them to the Supreme Court.

The amendments were published for public comment from August 2025 through February 2026. The Advisory Committee counted 13 comments on Rule 17 and held a hearing on January 22, 2026.

The proposed rule would reach four additional proceedings

Current Rule 17(c)(1) permits a subpoena to require a witness to produce designated books, papers, documents, data, or other objects. The court may direct production in court before trial or before the items are offered in evidence. The current text refers only to trial.

Proposed Rule 17(c)(2)(A) would expressly authorize third-party subpoenas for detention hearings, suppression hearings, sentencing, and revocation hearings. With the court's permission, subpoenas could also be used for other evidentiary hearings.

The Advisory Committee's report said the government can otherwise obtain third-party evidence for nontrial proceedings through a search warrant or, in limited circumstances, a grand jury subpoena. The amendment would put subpoena authority for the listed proceedings directly in Rule 17.

A written standard would replace varied district approaches

Proposed Rule 17(c)(2)(B) would require each subpoena to describe every designated item with reasonable particularity. The requested items also would have to satisfy three conditions.

First, they must be likely to be possessed by the subpoena recipient. Second, they must not be reasonably available to the requesting party from another source. Third, they must be, or contain information that is, likely to be admissible as evidence in the designated proceeding.

The Advisory Committee described this as a codified, somewhat loosened version of the test in United States v. Nixon, 418 U.S. 683 (1974). At page 700, the Supreme Court identified relevancy, admissibility, and specificity as the three hurdles for a Rule 17(c) subpoena before trial.

The committee rejected a broader formulation based on material likely to lead to admissible evidence. The committee note says the text does not separately refer to relevance because information would not be admissible unless it were relevant.

The report also addresses proceedings in which the Federal Rules of Evidence do not apply, including sentencing. Courts still apply basic standards of relevance, authenticity, and reliability in those proceedings. Privileges still apply.

The Advisory Committee said Rule 17 interpretations vary widely across districts. Some courts have read the rule so narrowly that subpoena practice is almost nonexistent. Some have required a party to show with certainty that requested material would be admitted, which could bar impeachment subpoenas until the opposing party presented its witnesses. Other districts have accepted a showing of likely admissibility, and practitioners there reported no problems.

The effort traces to a spring 2022 proposal from the New York City Bar Association's White Collar Crime Committee. That proposal called for records relevant and material to preparation of the prosecution or defense. The National Association of Criminal Defense Lawyers also submitted suggestions.

Represented parties generally would not need a motion

Under proposed Rule 17(c)(2)(C), a represented party could serve a production subpoena without first filing a motion, unless a local rule or court order requires one.

Two categories would require a motion and court order. A motion would be required for a subpoena seeking personal or confidential information about a victim under Rule 17(c)(3). A self-represented party also would need a motion before serving a subpoena to produce items under new paragraph (c)(4).

Proposed paragraph (c)(2)(E) addresses ex parte practice. On a showing of good cause, the court must permit a party to file a subpoena motion ex parte. The mandatory wording was chosen so that an individual judge or local rule could not prohibit ex parte motions.

When no motion is required, proposed paragraph (c)(2)(F) would impose no duty to tell other parties about the subpoena, absent an order requiring notice.

Victim information would default to production in court

Proposed Rule 17(c)(5) would set different production locations. Unless the court orders otherwise, a non-grand-jury subpoena would require production to the court if requested by a self-represented party or if it seeks personal or confidential information about a victim.

A subpoena requested by a represented party that does not seek victim information could require production directly to the requesting party's counsel. Courts would retain authority to order in camera review.

Before this piece was published, the Archivar editorial desk read the Advisory Committee's May 8, 2026 report side by side with the current text of Rule 17. The desk noted that paragraph (c)(5) is the part that changed after public comment. The version published for comment in August 2025 did not contain the default requiring production to the court for subpoenas seeking a victim's personal or confidential information.

The amendment also would clarify the scope of the victim-information rule. Current Rule 17(c)(3), added in 2008 to implement the Crime Victims' Rights Act, requires a court order before a subpoena for personal or confidential information about a victim may be served on a third party after a complaint, indictment, or information is filed. It also requires notice to the victim before the order is entered, absent exceptional circumstances.

New paragraph (c)(3)(A) would state that the subpoena may be served on a third party, "including a victim," only by court order upon motion. The change responds to decisions that read the current rule as not covering subpoenas served directly on the victim.

Eight commenters supported the amendments in some form, including defense organizations, the Federal Magistrate Judges Association, and the Judicial Conference Committee on Criminal Law. Several urged the broader relevant and material standard. Three victims' rights advocates, Professor Paul Cassell, Professor Meg Garvin, and a representative of Volare, opposed the changes, citing expanded access to victims' personal records and concerns under the Crime Victims' Rights Act.

The Advisory Committee retained the expanded proceedings, the likely-to-be-admissible standard, and mandatory ex parte availability on good cause. It described the result as a compromise between those positions. The committee reported that victim advocates did not identify harms occurring in districts that already allow broader subpoena practice.

Produced items would not automatically go to the opposing party

Proposed Rule 17(c)(6) would state that Rule 17 does not require disclosure of produced items to a party that did not request the subpoena. It also would state that the rule does not alter existing disclosure and discovery requirements.

The Standing Committee rephrased this paragraph in June 2026. The committee note was clarified to state that the amendments do not modify existing law governing the timing of disclosures.

The change responds to differing practice. Some courts have required all produced items to be shared with the opposing party regardless of Rule 16. The proposed text would not itself impose that requirement.

Three changes would affect subpoena practice

First, defense counsel and prosecutors would have express authority to subpoena third-party records for detention, suppression, sentencing, and revocation hearings in every district. The authority would no longer depend on each district's interpretation of the current trial-focused text.

Second, requests would be measured against one written test. The subpoena would need reasonable particularity, a recipient likely to possess the items, a showing that the items are not reasonably available elsewhere, and a likelihood that the items or their contents would be admissible in the designated proceeding. The request also would have to identify the proceeding.

Third, local rules and standing orders would continue to matter. Courts could require motions for additional categories of subpoenas and could direct production to the court. Counsel would still need to check the district's own rules.

Archivar, which publishes The Docket, is an operating system for law firms: it answers every call 24/7 in English and Spanish, runs intake, manages matters, and remembers everything the firm does. A defense firm tracking these subpoenas would keep on the matter record which proceeding each subpoena was issued for and whether it went out with or without a motion.

Until the amendment process is complete and any new rule takes effect, the current Rule 17 text and the governing local practice control.

The rule written for trial would reach the hearings that come before and after it.

The test courts have applied since 1974 would be written into the rule, slightly loosened.

Victim information would still need a judge's order, and by default would go to the court first.