Depositions in U.S. Litigation

Depositions are out-of-court oral examinations conducted under oath, forming one of the most consequential tools within the discovery process in U.S. litigation. This page covers the governing rules, procedural mechanics, primary deposition types, and the strategic and legal boundaries that define when and how depositions may be used in both federal and state proceedings. Understanding depositions matters because sworn testimony taken before trial can be used to impeach witnesses, establish facts, and in certain conditions substitute entirely for live courtroom appearances.

Definition and Scope

A deposition is a pretrial discovery mechanism through which a party or non-party witness provides sworn testimony before a court reporter, and often before opposing counsel. The testimony carries the same legal weight as courtroom testimony because it is given under oath, making false answers subject to perjury statutes.

The governing federal authority is Federal Rule of Civil Procedure 30 (oral depositions) and Rule 31 (depositions by written questions), codified in the Federal Rules of Civil Procedure (FRCP) as published by the Judicial Conference of the United States. Under FRCP 30(a)(2)(A), a party must obtain leave of court if the parties have not stipulated to the deposition and the deponent has already been deposed in the case, or if more than 10 depositions are sought. That 10-deposition ceiling is the default numerical limit per side in federal civil litigation absent court order or party stipulation.

State courts follow analogous rules. California, for example, limits depositions of each natural person to one 7-hour session under California Code of Civil Procedure § 2025.290, mirroring the federal 7-hour day limit established in FRCP 30(d)(1).

Depositions may be taken of:
- Parties — plaintiffs, defendants, and, in entity cases, corporate designees
- Non-party witnesses — fact witnesses compelled by subpoena under FRCP 45
- Expert witnesses — subject to any scheduling order restrictions

How It Works

The deposition process follows a discrete procedural sequence:

1. Notice or subpoena — A party issues a Notice of Deposition to another party under FRCP 30(b)(1), identifying the deponent, date, time, and location. Non-parties require a subpoena under FRCP 45 to compel attendance.
2. Rule 30(b)(6) designation (entity depositions) — When a corporate or organizational party is deposed, the noticing party specifies topics and the entity must designate one or more representatives prepared to testify on those topics. This rule is central to deposing government agencies and corporations.
3. Court reporter and recording — A certified court reporter transcribes the testimony. Under FRCP 30(b)(3), parties may also record by audio or video means, provided proper notice is given.
4. Examination sequence — Counsel for the noticing party conducts direct examination; opposing counsel cross-examines. Any party may ask questions.
5. Objections during testimony — Counsel may object to form, but under FRCP 30(c)(2), speaking objections that coach the witness are prohibited. The witness generally answers unless instructed not to by counsel invoking privilege.
6. Review and signature — Under FRCP 30(e), the deponent has 30 days to review the transcript and make corrections if requested before the deposition was completed.
7. Use at trial — Under FRCP 32, deposition testimony may be used to impeach a witness, as substantive evidence if the witness is unavailable, or as an admission of a party opponent.

The rules of evidence in U.S. litigation intersect at the trial-use stage, because admissibility of deposition excerpts is governed by both FRCP 32 and the Federal Rules of Evidence (FRE), particularly FRE 801(d)(2) for party admissions.

Common Scenarios

Fact-witness depositions are the most frequent type. In a commercial breach-of-contract dispute, opposing counsel deposes company employees with knowledge of contract negotiations, focusing on email exchanges already produced in requests for production.

Corporate designee depositions under Rule 30(b)(6) arise when a party needs institutional knowledge rather than one individual's recollection. Inadequate preparation of a 30(b)(6) witness can result in sanctions under FRCP 37(d).

Expert witness depositions occur after expert reports are disclosed under FRCP 26(a)(2). These depositions probe the methodology, data sources, and assumptions underlying expert opinions, often serving as the predicate for a Daubert motion challenging admissibility under FRE 702.

Video depositions are strategically taken when a witness is elderly, ill, or located outside the trial court's subpoena range (which extends to 100 miles under FRCP 45(c)(1)). The video recording is then played for the jury in lieu of live testimony.

Depositions in criminal proceedings differ materially. Federal Rule of Criminal Procedure 15 permits depositions only in "exceptional circumstances" to preserve testimony — a substantially narrower gateway than in civil litigation. State criminal rules vary but similarly treat depositions as exceptional rather than routine.

Decision Boundaries

The threshold question for any deposition is relevance under FRCP 26(b)(1): testimony must be relevant to any party's claim or defense and proportional to the needs of the case. Proportionality factors include the amount in controversy, the importance of the issues, and the burden on the responding party.

Key boundaries include:

• Privilege objections — Counsel may instruct a witness not to answer when a response would reveal attorney-client privileged communications or work-product protected material.
• Harassment and bad faith — A court may limit or terminate a deposition under FRCP 30(d)(3) if conducted in bad faith or in a manner that unreasonably annoys, embarrasses, or oppresses the deponent.
• The 7-hour rule — FRCP 30(d)(1) caps each oral deposition at one day of 7 hours. Extension requires court order or stipulation.
• The 10-deposition limit — As noted, FRCP 30(a)(2)(A)(i) bars more than 10 depositions per side without leave.
• Apex doctrine — Courts in many jurisdictions apply this doctrine to protect high-ranking executives from depositions unless the noticing party demonstrates the executive has unique, non-duplicative knowledge unavailable through other discovery. This is a judicially developed standard rather than a codified FRCP rule.

Depositions that cross into sanctions territory — such as destruction of documents in anticipation of deposition questions — implicate FRCP 37 and the court's inherent authority. Coordination with litigation holds and document preservation obligations is therefore integral to deposition planning.

Compared to interrogatories, which are written questions answered under oath but prepared with attorney assistance, depositions produce spontaneous, real-time testimony that is harder to sanitize and more revealing under skilled examination. That distinction drives most deposition strategy in complex civil litigation.

References

• Federal Rules of Civil Procedure — Rules 30, 31, 32, 45 (U.S. Courts)
• Federal Rules of Criminal Procedure — Rule 15 (U.S. Courts)
• Federal Rules of Evidence — Rules 701–702, 801 (U.S. Courts)
• Judicial Conference of the United States — Civil Rules Advisory Committee
• California Code of Civil Procedure § 2025.290 — Deposition Time Limit (California Legislative Information)
• FRCP 26(b)(1) — Scope and Limits of Discovery (Cornell LII)