The point of a deposition is to put a witness under oath before trial and get their story on the record, where it can be used as evidence, as a preview of the other side’s case, and as a weapon if the witness later changes their account. It is a sworn question-and-answer session held outside the courtroom, with a court reporter capturing every word in a transcript that carries the same legal weight as live testimony. Lying in one is perjury, punishable by up to five years in federal prison. Attorneys invest in depositions because a single well-run session can reshape a lawsuit long before anyone sees a jury.
Gathering Facts Through Discovery
The most straightforward purpose is information gathering. Each side in a civil case is entitled to investigate the other’s claims through discovery, and a deposition is the most direct form of it: a live person, in a room, answering questions under oath. The Federal Rules of Civil Procedure let attorneys ask about anything relevant to any party’s claims or defenses, so long as the question does not invade a legal privilege like attorney-client communications.
That scope is deliberately broad. An attorney can ask what a witness personally saw or heard, probe the details of documents, find out who else might have information, and explore topics that would never be allowed at trial. The goal is to eliminate surprises. Before depositions became standard, a party could walk into a courtroom and encounter testimony nobody anticipated. A deposition gives both sides a preview of the evidence, and that preview shapes strategy from the earliest stages of the case.
Preserving Testimony for Trial
A deposition also creates a permanent, certified record of what a witness said at a specific moment. That record matters when the witness cannot show up at trial. A court may allow deposition testimony to be read or played in the courtroom if the witness has died, is too ill or infirm to attend, or is located more than 100 miles from the courthouse.1Legal Information Institute. Federal Rules of Civil Procedure Rule 32 – Using Depositions in Court Proceedings Military deployment, imprisonment, and residence outside the United States also qualify.
This matters most for elderly witnesses, people with serious health conditions, and anyone whose availability a year or two later is uncertain. Without a deposition on the record, that person’s knowledge can disappear from the case entirely. Attorneys who recognize the risk early schedule depositions as a form of insurance, even when trial still seems distant.
Locking In a Story for Impeachment
Beyond preservation, the transcript pins a witness to a specific version of events. Because the testimony is sworn, the witness cannot easily walk it back later. If they tell a different story at trial, the opposing attorney can read the contradictory deposition testimony aloud in front of the jury. The federal rules explicitly permit any party to use a deposition to contradict or impeach a witness who testifies inconsistently.1Legal Information Institute. Federal Rules of Civil Procedure Rule 32 – Using Depositions in Court Proceedings
This is where depositions do some of their most visible damage. A skilled attorney will confront the witness with the exact page and line number of the transcript, read the prior answer aloud, and let the inconsistency sit with the jury. The witness is left either admitting the story changed or struggling to explain why the two versions differ. Either outcome erodes credibility. Experienced litigators treat the transcript as ammunition they are stockpiling for cross-examination.
Sizing Up Witnesses
A deposition is the only chance to see an opposing witness under pressure before trial. Attorneys watch far more than the content of the answers. They assess whether the witness stays calm, gets rattled by difficult questions, comes across as likable, or seems evasive. A witness who falls apart under routine questioning in a conference room will likely be worse in front of a jury.
The evaluation cuts both ways. Attorneys also use the experience to prepare their own witnesses, spotting habits that need correction like volunteering too much information, guessing at answers, or becoming visibly defensive. The deposition becomes a dress rehearsal where the stakes are real but the audience is small, and what the attorney learns drives tactical choices about which witnesses to feature at trial, which to avoid calling, and how to structure the evidence.
Pushing the Case Toward Settlement
Most civil cases settle before trial, and depositions are often the catalyst. Before the key witnesses have been examined under oath, both sides are guessing about how strong the evidence really is. After depositions, the guessing ends. Each party has seen the other side’s witnesses answer tough questions, watched how they handle pressure, and identified the weak spots in the opposing case.
When a deposition goes badly for one side, the risk of trial becomes concrete and measurable. A plaintiff’s star witness who contradicts their own story, or a corporate representative who cannot explain critical decisions, shifts settlement dynamics quickly. The side with the weaker performance has strong incentive to negotiate, and the stronger side has leverage to demand better terms. That is how depositions costing thousands of dollars end up saving both parties the far greater expense of a full trial.
Who Can Be Deposed
Any person with relevant information can potentially be deposed: parties to the lawsuit, eyewitnesses, experts, and employees of involved companies. Each side can take up to 10 depositions without court permission; beyond that, a judge must approve.2Legal Information Institute. Federal Rules of Civil Procedure Rule 30 – Depositions by Oral Examination
When the target is a company, the rules provide a specific mechanism. A party can name the organization itself in the deposition notice and list the topics to be covered. The organization must then designate one or more people to testify on its behalf about those topics.2Legal Information Institute. Federal Rules of Civil Procedure Rule 30 – Depositions by Oral Examination The designated representative speaks for the organization, not just for themselves, so their answers can bind the company.
Non-parties with no stake in the lawsuit can also be compelled to appear through a subpoena, which can only require attendance within 100 miles of where the person lives or works.3Legal Information Institute. Federal Rules of Civil Procedure Rule 45 – Subpoena
What Happens if You Skip
Failing to show up for a properly noticed deposition carries real consequences. For parties to the lawsuit, the opposing side can immediately file a motion for sanctions without even trying to resolve the issue informally first.4Legal Information Institute. Federal Rules of Civil Procedure Rule 37 – Failure to Make Disclosures or to Cooperate in Discovery The court has broad discretion, and the available sanctions are severe:
- Treating disputed facts as proven against the absent party.
- Barring the absent party from presenting evidence or arguments on specific claims or defenses.
- Striking some or all of the absent party’s filings.
- Entering default judgment or dismissal, ending the case entirely in extreme situations.
On top of any of those, the court must also order the no-show party or their attorney to pay the reasonable expenses and attorney’s fees the other side incurred because of the failure, unless the absence was substantially justified.4Legal Information Institute. Federal Rules of Civil Procedure Rule 37 – Failure to Make Disclosures or to Cooperate in Discovery Claiming that the questions would have been objectionable is not a defense unless the party had already filed a motion for a protective order before the scheduled date.
Non-party witnesses who ignore a subpoena face contempt of court, and the subpoenaing party can also seek to recover lost earnings and attorney’s fees from whoever caused the non-compliance.3Legal Information Institute. Federal Rules of Civil Procedure Rule 45 – Subpoena Showing up matters, because the point of the deposition only works if the witness is actually in the chair.