Testimony is oral or written evidence given by a witness under oath, affidavit, or deposition during a trial or other legal proceeding. It is the factual account or opinion a witness provides as part of the formal record.

In court, testimony is one form of Evidence used to help the judge or jury decide what happened and what the law requires.

Testimony Explained

Cornell Wex defines testimony as oral or written evidence given by a witness under oath, affidavit, or deposition during a trial or other legal procedure. Department of Justice witness materials similarly explain that what a witness actually says in court is called testimony and that witnesses must first take an oath or affirm to tell the truth.

The Term Testimony in Different Legal Contexts

Testimony appears in trials, hearings, depositions, and other proceedings where facts must be established through witness statements. It may come from lay witnesses, expert witnesses, or character witnesses depending on the nature of the case.

The value of testimony depends on credibility, perception, memory, consistency, and whether the witness has a proper basis for what they say. Some testimony describes facts, while other testimony explains specialized knowledge.

Common Misconceptions About the Meaning of Testimony

A common misconception is that testimony only means live spoken words in a courtroom. In legal usage, testimony can also include sworn statements given in settings such as depositions.

Another misconception is that all testimony carries the same weight. Courts and juries evaluate each witness differently based on reliability, bias, and the surrounding evidence.