Subpoenas Explained: Duties, Rights, and Practical Steps
Understand what a subpoena is, what it requires, and how to respond safely and effectively in any legal matter.

A subpoena is one of the most common tools used in court cases, yet it is also one of the most misunderstood. If you receive a subpoena, you are being formally ordered to provide testimony, documents, or other evidence in connection with a legal proceeding. Failing to understand what the document requires can have serious consequences, but so can responding without protecting your rights.
This guide provides a clear, practical overview of subpoenas, what they mean, and how to approach them with confidence and caution.
1. What a Subpoena Is (and Is Not)
In basic terms, a subpoena is a written order issued under the authority of a court or other authorized body, directing a named person or organization to appear as a witness or to produce specified evidence at a particular time and place. It is legally binding once properly issued and served.
- Purpose: to secure evidence—either testimony or documents—for use in a legal or investigative proceeding.
- Typical issuers: courts, judges, and, in many jurisdictions, attorneys acting on behalf of the court.
- Applies to: both individuals and entities (such as businesses, hospitals, or universities).
A subpoena is not the same as a summons and complaint. A summons notifies you that you are being sued and must defend yourself in court, while a subpoena primarily compels you to give evidence, even if you are not a party to the case.
| Document Type | Main Purpose | Who Receives It |
|---|---|---|
| Subpoena | Compel testimony or production of evidence | Witnesses, record custodians, third parties |
| Summons & Complaint | Notify that a lawsuit has been filed against you | Defendants in a civil case |
2. Key Types of Subpoenas
While terminology varies somewhat by jurisdiction, most legal systems recognize several core categories of subpoenas.
2.1 Witness (Testimonial) Subpoena
A witness subpoena (sometimes called a subpoena ad testificandum) orders you to appear in person to give sworn testimony.
- Used for court trials, hearings, grand jury proceedings, or depositions.
- May be served on eyewitnesses, expert witnesses, or individuals with relevant knowledge.
- Often includes basic details: case caption, date, time, place, and issuing attorney or court.
2.2 Subpoena for Documents or Things
A subpoena for records (commonly called a subpoena duces tecum) directs the recipient to produce specified documents, records, or other tangible items.
- Typical requests: medical records, business ledgers, emails, phone logs, photographs, or digital files.
- Often issued to third parties who hold information about someone else, such as banks or employers.
- In many cases, physical appearance is not required if records can be delivered by agreed methods.
2.3 Deposition Subpoena
A deposition subpoena orders a nonparty witness to appear at a deposition and may also require production of documents as part of pretrial discovery.
- Used mainly in civil litigation during the discovery phase.
- Testimony is taken under oath but outside the courtroom, and a transcript is created.
- May be combined with document requests so that both oral testimony and records are obtained.
3. Who Can Issue and Serve a Subpoena?
The power to issue and serve subpoenas is created and limited by statute and court rules. Misunderstanding these rules can affect whether a subpoena is enforceable.
3.1 Issuing Authority
In many jurisdictions:
- Court clerks and judges may sign and issue subpoenas on request.
- Licensed attorneys are often authorized to issue subpoenas in the name of the court in cases where they appear as counsel.
- Government agencies may have statutory power to issue administrative subpoenas or summonses.
Administrative subpoenas or summonses, commonly used by agencies such as tax or financial regulators, are enforceable through the courts but are issued under specific enabling statutes.
3.2 Service Requirements
Service rules are strict because a subpoena imposes serious obligations. Many jurisdictions require:
- Personal delivery of the subpoena to the named person (or authorized agent).
- Service by an adult not involved as a party, or in some cases by professional process servers.
- Payment of statutory witness fees and travel costs when required, especially for nonparty witnesses.
Some rules allow alternative forms of service in specific situations, such as service on a designated official for government employees or peace officers.
4. Your Legal Obligations When Subpoenaed
A properly issued and served subpoena is a binding court order. Ignoring it can lead to penalties, but you are also not required to comply blindly with every demand.
4.1 Duty to Appear or Produce
If the subpoena calls for your appearance or for records, your basic obligations are to:
- Appear at the specified place, date, and time, if personal attendance is required.
- Bring or deliver the documents or items listed in the subpoena, subject to valid objections or protections.
- Answer questions truthfully once under oath, unless a privilege applies.
4.2 Consequences of Noncompliance
Deliberate failure to obey a valid subpoena can result in:
- Contempt of court, which may carry fines or, in serious cases, jail time, depending on local law.
- Adverse inferences or sanctions in the underlying case, especially for parties who withhold evidence.
- Additional court orders compelling compliance and shifting costs or attorney fees.
Because enforcement involves judicial discretion, courts will often consider good-faith efforts, attempts to negotiate scope, and timely objections.
5. Protecting Your Rights and Interests
While a subpoena is serious, it does not erase your legal rights. Many protections may limit what you must disclose or how you must appear.
5.1 Privileges and Confidentiality
Common legal protections include:
- Attorney–client privilege: Communications seeking or providing legal advice between a client and lawyer are generally protected from compelled disclosure.
- Work-product doctrine: Certain materials prepared for litigation by or for attorneys may be shielded from discovery under procedural rules.
- Other recognized privileges: Depending on jurisdiction, these can include spousal communications, clergy–penitent, or psychotherapist–patient privileges.
- Statutory privacy protections: For example, financial records and some categories of educational or medical data are subject to special statutory safeguards and notice requirements.
If a subpoena appears to demand privileged or highly sensitive information, consult counsel promptly to evaluate whether an objection or motion to quash is appropriate.
5.2 Undue Burden and Scope
Civil procedure rules in many jurisdictions empower courts to limit or deny subpoenas that are unreasonably broad, duplicative, or unduly burdensome for the person or organization receiving them.
- Overly broad date ranges or subject matters may be narrowed through negotiation or court order.
- Small businesses or individuals can ask the court to shift costs or limit requests that require extensive time or technical expertise.
- Courts frequently balance the need for evidence against the burden on the responding party.
6. Step-by-Step: How to Respond to a Subpoena
If you receive a subpoena, a systematic approach helps you avoid mistakes and preserve your rights.
6.1 Initial Review
- Verify authenticity: Check that it identifies a court or authorized agency, includes a case or reference number, and is signed by a judge, clerk, or attorney, as required locally.
- Read all pages carefully: Note deadlines, locations, and exactly what is being requested.
- Confirm service: Document when and how you received it, including any attached witness fee.
6.2 Decide Whether to Consult a Lawyer
You should strongly consider legal advice if:
- You are a party to the underlying case.
- Producing the requested information might expose you to civil liability, criminal risk, or breach of confidentiality duties.
- The scope of the request is complex, technical, or voluminous.
For organizations, particularly those handling regulated data (healthcare, finance, education), coordinating with in-house or external counsel is standard practice.
6.3 Preserve Potential Evidence
Once on notice of a subpoena, you should suspend routine deletion or destruction of relevant records.
- Implement a litigation hold within your organization, if applicable.
- Alert IT or records personnel to preserve email, backups, and electronic files related to the request.
6.4 Meet, Confer, or Negotiate Scope
In many civil cases, lawyers are expected to confer in good faith to resolve subpoena issues without court intervention.
- Discuss narrowing date ranges, search terms, or formats for production.
- Agree on phased or rolling production if volume is large.
- Consider confidentiality agreements or protective orders for sensitive material.
6.5 Make Objections or Seek Court Relief if Needed
When necessary, your lawyer may file motions such as:
- Motion to quash or modify: Challenges the subpoena as improper, overbroad, or unduly burdensome.
- Motion for protective order: Seeks court-imposed limits on use, access, or disclosure of sensitive information.
Deadlines for these motions can be short; in some jurisdictions, you must act before the date of compliance or within a fixed number of days after service.
7. Subpoenas in Civil, Criminal, and Administrative Matters
Although the basic concept of a subpoena is consistent, its use and effects vary among different types of proceedings.
7.1 Civil Cases
- Frequently used to obtain documents and testimony from nonparties as part of discovery.
- Parties often negotiate over scope, cost, and timing before seeking court rulings.
- Rules may include specific time frames for responding to document subpoenas.
7.2 Criminal Cases
- Used to require witnesses to testify at trial or preliminary hearings.
- Grand jury subpoenas may be used to gather evidence during investigations; federal law distinguishes these from other judicial subpoenas in the context of bank records and privacy rules.
- Constitutional rights, such as the Fifth Amendment privilege against self-incrimination in the United States, may limit compelled testimony.
7.3 Administrative and Regulatory Proceedings
- Certain agencies may issue administrative subpoenas or summonses directly under statutory authority.
- These tools often request business or financial records relevant to regulatory compliance or enforcement.
- If the recipient refuses, agencies typically must seek enforcement through a court, where a judge reviews scope and legality.
8. Practical Tips for Businesses and Record Custodians
Organizations are frequent recipients of subpoenas because they hold valuable records about customers, employees, or third parties.
- Designate a records officer: Assign responsibility for receiving, tracking, and coordinating responses to legal process.
- Create written procedures: Include steps for intake, legal review, preservation, collection, and production.
- Train staff: Ensure employees know that legal documents must be forwarded promptly to the correct internal contact.
- Protect privacy: Verify that requested disclosures comply with applicable privacy and data-protection laws, and seek protective orders if needed.
9. Frequently Asked Questions (FAQs)
Q1: Do I have to go to court if the subpoena conflicts with my schedule?
You cannot simply ignore a subpoena because of a scheduling conflict. Contact the issuing lawyer or court as soon as possible; in many cases, dates can be rescheduled by agreement or through a formal request to the court. Until you receive confirmation of any change, you must treat the original date as binding.
Q2: Can I ignore a subpoena that was mailed instead of handed to me?
Service rules differ by jurisdiction, but many require personal delivery for trial or witness subpoenas. Even if you suspect service was defective, speak to a lawyer before ignoring it. Courts can sometimes cure technical defects, and deliberate noncompliance can lead to sanctions.
Q3: What if the subpoena seeks someone else’s confidential records I hold?
If you are a custodian of records (for example, a healthcare provider, school, or financial institution), you may have statutory or contractual duties of confidentiality. Laws often allow disclosure in response to a valid subpoena, but may require notice to the affected person or a protective order. Consult legal counsel and follow any applicable privacy regulations.
Q4: Do I get paid for testifying as a witness?
Many jurisdictions provide a modest statutory witness fee and reimbursement for travel for nonparty witnesses. The subpoena or accompanying documents may specify the amount and payment method. Parties, expert witnesses, or employees testifying within their job duties may be treated differently.
Q5: Can I discuss my testimony with the lawyer who subpoenaed me?
Yes, witnesses commonly speak with the lawyer who issued the subpoena to clarify logistics and subject matter. However, you are not required to adopt any suggested wording, and your testimony must always be truthful. If you have concerns about your own legal exposure, it is wise to get independent legal advice.
References
- 408. Definitions of Judicial Subpoena, Administrative Summons and Formal Written Request — U.S. Department of Justice, Justice Manual. 1980-11-01. https://www.justice.gov/archives/jm/criminal-resource-manual-408-definitions-judicial-subpoena-administrative-summons-and-formal
- Legal Requirements for Subpoenas — National Institute of Justice, Office of Justice Programs. 2012-05-01. https://nij.ojp.gov/nij-hosted-online-training-courses/law-101-legal-guide-forensic-expert/subpoenas-vs-promises-appear/legal-requirements-subpoenas
- Subpoena FAQs — Office of Legal Affairs, University of California, Berkeley. 2021-06-01. https://chancellor.berkeley.edu/about/offices/legal-affairs/FAQs
- What Is a Subpoena, and Why Have I Been Served? — Super Lawyers / Thomson Reuters. 2022-03-15. https://www.superlawyers.com/resources/criminal-defense/whats-a-subpoena-and-why-have-i-been-served/
- What is a Subpoena? — Oregon State Bar. 2016-01-01. https://www.osbar.org/public/legalinfo/1062_subpoena.htm
- Subpoena someone or something — Judicial Council of California, Self-Help Guide. 2020-09-01. https://selfhelp.courts.ca.gov/subpoena
- I received a subpoena and don’t know what to do — Illinois Legal Aid Online. 2021-05-10. https://www.illinoislegalaid.org/legal-information/i-received-subpoena-and-dont-know-what-do
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