A deposition is sworn, recorded testimony taken outside the courtroom, usually during pretrial discovery. The person giving it is the deponent. Being deposed means answering formal questions for the case record; it does not mean the person is on trial, accused of wrongdoing or guaranteed to appear as a trial witness.

The usual picture is a witness answering lawyers' oral questions. That is not the only format: federal civil rules also allow depositions by written questions. State, criminal and administrative proceedings may follow different rules. The federal civil examples below explain the term rather than supply instructions for every case.

What happens at a deposition?

Federal Rule of Civil Procedure 30 governs federal civil depositions by oral examination. A typical sequence is:

1. Arrange attendance and notice. The taking party gives the other parties reasonable written notice identifying the deposition's time, place and witness. A nonparty's attendance may need a subpoena. Certain situations require court permission.
2. Identify the participants and administer the oath. The authorized officer records the opening information and swears the witness, subject to the rule's provisions. Lawyers may question the deponent; a judge ordinarily does not sit in the room conducting the examination.
3. Ask and answer questions. The testimony is recorded. Objections may be stated on the record, but they do not ordinarily stop the questioning. In federal civil practice, instructions not to answer are limited to preserving privilege, enforcing a court-ordered limitation or presenting the specified motion to terminate or limit the deposition.
4. Complete and certify the record. The officer certifies that the witness was sworn and the deposition accurately records the testimony. Exhibits and the recording or transcript form part of the resulting record as the rules provide.
5. Address review and later use separately. Under Rule 30(e), a timely request before completion triggers an opportunity to review the available transcript or recording and list changes with reasons. That review is different from a judge deciding what may later be used in court.

A court reporter may create the stenographic record. Rule 30 also permits audio or audiovisual recording unless the court orders otherwise, and it allows remote depositions by stipulation or court order. A deposition therefore need not happen in person or produce only a shorthand-based transcript.

What about written questions?

Rule 31 provides a deposition procedure using written questions served in advance. An officer takes the deponent's testimony in response and prepares and certifies the deposition. It is not simply an email interview, an affidavit or permission for a witness to write unsworn answers at home.

Deposition versus other statements

Federal law permits qualifying unsworn declarations under penalty of perjury for many purposes, but excludes depositions from that substitution. Calling a document a “declaration” does not convert it into deposition testimony.

Why lawyers take depositions

A deposition can serve four practical purposes:

• Discover facts. Questions identify what a witness knows, how the witness knows it, and where additional information may be found.
• Clarify an account. Follow-up questions can separate a person's observation from an assumption or something learned from someone else.
• Preserve testimony. The recorded account may matter if the witness later becomes unavailable, subject to the governing use rules.
• Test later consistency. Earlier testimony can be compared with what a witness says later; a contradiction is not automatically proof of which account is correct.

The information can also inform case evaluation or settlement discussions without establishing that settlement will occur.

Hypothetical usage: “The delivery driver gave a deposition about the intersection's signals.” This means the driver provided sworn testimony outside court. It does not establish that the driver caused the accident or that the case will settle.

Can the testimony be used at trial?

Sometimes. Rule 32 governs federal civil use at hearings and trial. It includes conditions concerning notice or participation, evidentiary admissibility and the particular authorized use. Examples include impeachment, an adverse party's use of a party or designated representative's deposition, and specified circumstances involving unavailable witnesses.

For example, a witness who later says the signal was red might be confronted with their earlier sworn answer that it was green. That hypothetical illustrates impeachment, not an automatic finding that either account is true.

Do not assume every recorded answer will be played to the jury. A proper discovery question and an admissible trial answer are different issues. The court may also need context from other parts of the deposition rather than an isolated excerpt.

Federal criminal practice differs. Criminal Rule 15 permits a party to seek a deposition to preserve prospective witness testimony for trial based on exceptional circumstances and the interests of justice. The broad civil-discovery model should not be assumed to apply.

What is the difference between discovery and evidence depositions in Illinois?

Illinois Supreme Court Rule 202 requires the notice, order or stipulation to identify discovery or evidence purpose; without specification, it is discovery only. Rule 212 separately regulates later use, including limited uses of discovery depositions and conditions for evidence depositions. Neither label alone guarantees admission. This state distinction should not be imported into every federal case.

If you receive a deposition notice or subpoena

A notice and a subpoena are different documents. Civil Rule 45 governs subpoenas, including attendance or production commands and protections against undue burden, privileged disclosures and other improper requirements. A request for documents does not always require personal appearance unless attendance is also commanded.

Identify the case, who is requesting attendance, the date, recording method and any document request. Check the applicable rules and any court orders rather than ignoring the document or assuming every objection excuses attendance or an answer. If represented, raise questions with counsel. This is a record-identification checklist, not an individual response deadline or preparation strategy.

Frequently asked questions

What does a deposition mean in legal or court terms?

It is sworn testimony taken outside court through a formal procedure and recorded for the case. The witness is called the deponent; federal civil procedures include both oral examination and written questions.

Why do lawyers ask for a deposition?

To obtain and clarify testimony, identify information, preserve an account and evaluate consistency or later use. Requesting a deposition does not itself establish liability or wrongdoing.

Do most cases settle after deposition?

The fact that a deposition occurred does not support a settlement-rate claim or forecast. Its effect depends on the evidence and the case. No particular outcome follows from being deposed.

What is the simple definition of deposition?

A formal, recorded question-and-answer process in which a witness gives sworn testimony outside court. Check the jurisdiction and proceeding before assuming which format, attendance rule or later use applies.

What is testimony in court?

It is a witness's evidence given in the court proceeding. A deposition is testimony too, but taken outside court; later use of its record requires a separate legal basis.

What should you not do during a deposition?

Do not guess or treat an unclear question as understood. Ask for clarification rather than supplying an assumed fact. Do not assume an objection automatically permits silence; applicable privileges, court orders and procedural protections require attention.

Keep the notice or subpoena, identify the governing procedure, distinguish the transcript from any recording and exhibits, and check the specific review and courtroom-use rules before relying on a deposition record.