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Deposition (law)

Out-of-court oral testimony of a witness, reduced to writing

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History

Depositions by written interrogatories first appeared around the mid-15th century as a procedure for discovery, factfinding, and evidence preservation in suits in equity in English courts. They differed radically from modern depositions in three ways: the party seeking a witness's testimony merely propounded written interrogatories which were read out loud by a master or court-appointed commissioner to the witness in a closed proceeding without parties or counsel present; the witness's first-person oral answers under oath were not recorded verbatim, but were summarized by the master, commissioner, or a clerk appointed by them into a third-person continuous narrative; and the resulting written product (also called a "deposition") was filed with the court under seal and its contents were not revealed or "published" to the parties until shortly before trial.

The modern deposition by oral examination began to develop in New York in the early 19th century when Chancellor James Kent of the New York Court of Chancery allowed masters to actually examine witnesses (that is, pursue lines of questions in real time based on the witness's preceding answers) rather than read static interrogatories (which tended to be broadly worded and resulted in very inefficient depositions). He also allowed parties and counsel to be present during depositions. This meant depositions were no longer secret and led to counsel insisting on taking over the examinations themselves. These developments gradually spread across the United States and Canada.

During the late 19th century, summary narratives by court-appointed examiners were replaced by verbatim transcripts by court reporters. Finally, the merger of common law and equity procedure led to the adoption of live testimony in open court as the default method of taking trial evidence in all trials (equity had used depositions by written interrogatories in lieu of live testimony), which reduced the deposition to its modern role in American civil procedure as a discovery and evidence preservation device.

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