LEGAL GUIDE
What Is a Deposition?
Last updated: April 2, 2026
A deposition is a formal question-and-answer session in a lawsuit where a witness or party gives sworn testimony before trial. Depositions are part of the discovery process and can play an important role in how a case is investigated, evaluated, and prepared.
New to lawsuits? Start here for a simple step-by-step overview.
What Is a Deposition?
A deposition is an out-of-court proceeding where a person answers questions under oath. The testimony is usually recorded by a court reporter, and sometimes a video record is also made. Depositions are commonly used to gather facts, preserve testimony, evaluate witnesses, and better understand the strengths and weaknesses of a case.
Why Depositions Matter
Depositions matter because they can reveal important details about what happened, what a witness remembers, and how a party explains the facts. Testimony given during a deposition may later affect settlement discussions, motion practice, credibility issues, and trial strategy.
Who Can Be Deposed?
- Parties to the lawsuit
- Fact witnesses
- Corporate representatives
- Treating medical providers
- Experts in some cases
- Other individuals with relevant information
Who Is Usually Present at a Deposition?
A deposition usually includes the witness being questioned, the lawyers for the parties, and a court reporter. Sometimes a videographer is also present. Depending on the case, interpreters, corporate representatives, or other permitted individuals may attend as well.
What Kinds of Questions Are Asked?
The questions depend on the case. Lawyers may ask about background information, timelines, records, communications, injuries, medical treatment, product use, workplace conditions, exposure history, prior statements, and other facts relevant to the claims or defenses.
Some questions are simple and factual. Others are meant to test memory, detail, consistency, and how clearly a witness explains events.
Is a Deposition the Same as Testifying at Trial?
Not exactly. A deposition happens before trial and usually takes place in a conference room or office rather than a courtroom. But it is still sworn testimony, and the answers can matter later in the case. Deposition testimony may be used in motion practice, impeachment, or other parts of the litigation depending on the rules that apply.
Can Lawyers Object During a Deposition?
Yes. Lawyers may object to certain questions, although the witness often still answers unless instructed otherwise under the applicable rules. How objections are handled can vary depending on the jurisdiction and the issue involved.
How Long Can a Deposition Take?
Some depositions are relatively short, while others can last much longer. The length often depends on the complexity of the case, the amount of information involved, the importance of the witness, and any rules or agreements that limit the time. In larger cases, depositions may even take place over more than one session.
How Depositions Affect Settlement and Trial
Depositions often change how parties evaluate a case. A strong or weak witness performance, important admissions, inconsistencies, or newly clarified facts can all influence whether a case settles or continues toward trial. In that sense, depositions are often one of the most important parts of discovery.
Depositions connect closely to What Is Discovery?, What Is a Settlement?, What Is Mediation?, and What Happens at Trial?.
Common Questions People Ask
- What happens during a deposition?
- Is a deposition under oath?
- Who attends a deposition?
- Can deposition testimony be used later in court?
- How long does a deposition usually take?
- Why are depositions important in lawsuits?
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