2.14 Explanatory: Deposition Evidence at Trial is testimony taken under oath outside a courtroom setting that is then used as evidence in a trial. This type of testimony is given before the trial begins and is usually used to establish facts that support the case being presented. The deposition can take the form of written or verbal statements, documents, or recordings. The testimony can be used to impeach a witness, set forth expert opinions, introduce documentary evidence, and provide background information. The deposition will usually include the name of the witness, the date the deposition was taken, and the name of the attorney who took the deposition. The deposition can be used by the court to decide certain legal issues, such as the admissibility of evidence or the credibility of a witness.