A grand jury subpoena is a federal court order, issued at a prosecutor’s request, that compels you to testify or produce documents for a criminal investigation.1United States Department of Justice. Justice Manual 9-11.000 – Grand Jury Receiving one does not mean you are a suspect. The government may believe you have information relevant to something it is looking into, and the subpoena is how it gathers facts before deciding whether to charge anyone. Before you respond, you need to know what the subpoena is demanding, where you stand in the investigation, and what rights you can assert. Talk to a lawyer first.
What the Subpoena Is Asking For
Grand jury subpoenas come in two forms, and a single subpoena can combine both.
A subpoena ad testificandum orders you to appear before the grand jury and answer questions under oath. Only the jurors, government attorneys, and a court reporter are allowed inside the room while you testify.2United States Department of Justice Archives. Criminal Resource Manual 160 – Sample Target Letter
A subpoena duces tecum orders you to hand over specific documents or physical evidence, such as financial records, emails, or business files. You can often satisfy this type by delivering the materials to the prosecutor’s office without appearing in person. When the subpoena covers electronic records, it may reach metadata like login times, session durations, and subscriber information, and federal law lets the government use a grand jury subpoena to obtain stored communications and customer records from service providers, sometimes without notice to the account holder.3Office of the Law Revision Counsel. 18 U.S. Code 2703 – Required Disclosure of Customer Communications or Records
Are You a Target, a Subject, or a Witness?
Federal prosecutors sort every person connected to a grand jury investigation into one of three categories, and the category you fall into changes how you should respond.
A target is someone the prosecutor believes committed a crime and likely intends to indict. The Department of Justice defines a target as “a person as to whom the prosecutor or the grand jury has substantial evidence linking him or her to the commission of a crime and who, in the judgment of the prosecutor, is a putative defendant.”1United States Department of Justice. Justice Manual 9-11.000 – Grand Jury DOJ policy calls for notifying targets of their status, often through a “target letter” warning that anything they say may be used against them.2United States Department of Justice Archives. Criminal Resource Manual 160 – Sample Target Letter That notification is policy, not a legal requirement, and prosecutors can skip it if they believe the person might flee or destroy evidence.
A subject is someone whose conduct falls within the scope of the investigation, but prosecutors have not yet decided whether to charge. It is the gray zone between target and witness, and the investigation may be gathering information to decide which way to move.
A witness is someone the government believes has information about other people’s conduct and is not personally suspected of a crime. Most subpoena recipients fall in this category.
These labels are not permanent. A witness can become a subject or target as the investigation develops, and prosecutors have no obligation to tell you when your status changes. An experienced attorney can often contact the prosecutor’s office to learn your current designation, which should drive every decision you make about how to respond.
Your Rights When You Receive One
The Fifth Amendment
The Fifth Amendment protects you from being forced to give testimony that could be used against you in a criminal case.4Cornell Law School. Fifth Amendment You invoke it on a question-by-question basis. You can answer questions that pose no risk and decline specific ones that do, and the grand jurors may draw no negative inference from your refusal.
This right belongs to individuals, not organizations. If a company receives a subpoena for its records, a corporate custodian generally cannot invoke the Fifth to avoid producing company documents, even if those documents might incriminate the custodian personally.
Right to Counsel
You have the right to a lawyer throughout the process. In federal proceedings, your attorney cannot sit with you inside the grand jury room, but you can step out at any time to consult with counsel in the hallway.2United States Department of Justice Archives. Criminal Resource Manual 160 – Sample Target Letter Frequent pauses to consult are normal and expected. Your lawyer can also review the subpoena, negotiate its scope, and help you decide whether a particular question carries risk.
What You Can Say Afterward
Grand jury secrecy binds jurors, court reporters, interpreters, and government attorneys. Witnesses are not on that list.5Cornell Law School. Federal Rules of Criminal Procedure Rule 6 – The Grand Jury After testifying, you are generally free to tell anyone what you were asked and how you answered. Talking publicly can still create problems, though. If your public account conflicts with what the transcript shows, it can be used against you later. Think it through with your lawyer first.
Immunity If You Plan to Invoke the Fifth
Refusing to answer does not necessarily end things. If the prosecutor decides your testimony is important enough, the government can ask a federal court to grant you immunity and compel you to testify. The U.S. Attorney must get approval from the Attorney General or a senior DOJ official before making this request.6Office of the Law Revision Counsel. 18 U.S. Code 6003 – Court and Grand Jury Proceedings
Federal law provides what is known as “use immunity.” Once you testify under a use-immunity order, the government cannot use your compelled testimony, or any evidence it leads them to discover, against you in a future prosecution.7Office of the Law Revision Counsel. 18 U.S. Code 6002 – Immunity Generally The Supreme Court upheld this in Kastigar v. United States, ruling that use immunity provides protection equal to what the Fifth Amendment requires.8Justia. Kastigar v. United States, 406 U.S. 441 (1972)
Use immunity is narrower than transactional immunity, which would prevent the government from prosecuting you at all for the crimes your testimony touches. Under use immunity, the government can still prosecute you if it builds a case entirely from independent evidence that has no connection to your compelled testimony. Immunity does not make you untouchable; it walls off the specific testimony you were forced to give and anything that flows from it.
Once the court issues the order, you can no longer invoke the Fifth on those topics. Refuse to answer at that point and you face contempt.
How to Respond
Comply On Time
The straightforward response is to appear on the date listed or deliver the requested materials by the deadline. Before doing either, make sure you understand exactly what is being asked. A lawyer can help you interpret the subpoena’s scope so you do not produce more than is required.
Negotiate the Scope or the Deadline
Subpoenas are not always take-it-or-leave-it. Prosecutors routinely negotiate over what must be produced and when. If the deadline is unreasonably tight, especially for a document subpoena covering large volumes, your attorney can contact the prosecutor’s office to request an extension or a narrower scope. Most prosecutors prefer cooperation over courtroom fights, and informal adjustments happen constantly.
Move to Quash
If negotiation fails, your attorney can ask the court to throw out or narrow the subpoena by filing a motion to quash. Courts will grant it when compliance would be unreasonable or oppressive.9Cornell Law School. Federal Rules of Criminal Procedure Rule 17 – Subpoena Common arguments include that the subpoena demands an enormous volume of records with no real connection to the investigation, that it seeks communications protected by attorney-client privilege, or that it fails to allow a reasonable time to comply. The bar for quashing is higher than for a civil subpoena, because courts give prosecutors broad investigative latitude. It is not insurmountable, especially when a subpoena looks like a fishing expedition.
Two Things That Will Make Everything Worse
Lying under oath. If you testify before a grand jury and knowingly make a false statement about something material to the investigation, you face a perjury charge carrying up to five years in federal prison.10Office of the Law Revision Counsel. 18 U.S. Code 1623 – False Declarations Before Grand Jury or Court The maximum fine is $250,000.11Office of the Law Revision Counsel. 18 U.S. Code 3571 – Sentence of Fine The safer path is always to invoke the Fifth rather than fabricate an answer. Silence is legal protection; a lie is a separate felony.
Destroying or hiding documents. Destroying, altering, or concealing documents after receiving a subpoena, or when you know one is likely, is obstruction. Federal law punishes anyone who corruptly destroys or conceals records to keep them from being used in an official proceeding with up to 20 years in prison.12Office of the Law Revision Counsel. 18 U.S. Code 1512 – Tampering With a Witness, Victim, or an Informant The DOJ’s own sample target letter warns recipients that destroying or altering any document required by a grand jury is a serious federal crime.2United States Department of Justice Archives. Criminal Resource Manual 160 – Sample Target Letter People who were never going to be charged with the underlying crime sometimes end up indicted solely for destroying evidence.
What Happens If You Ignore It
If you fail to appear or refuse to hand over documents without a valid legal reason, the court can hold you in civil contempt. Civil contempt is not a criminal conviction; it is a coercive tool designed to force compliance. The practical consequences are severe.
A court can order you confined until you cooperate. Federal law caps this confinement at the lesser of the grand jury’s remaining term or 18 months.13Office of the Law Revision Counsel. 28 U.S.C. 1826 – Recalcitrant Witnesses Daily fines are also possible and can accumulate quickly.
The defining feature of civil contempt is that you hold the keys to your own release. The moment you agree to testify or produce the documents, confinement ends. If you refuse through the entire grand jury term, you must be released when the term expires, because the coercive purpose no longer exists.