You may in fact be selected later to sit on another trial. When both sides are finished with their challenges, the jurors who have been seated are sworn to try the case. Top of Page Conduct of the Trial Civil and criminal trials are conducted in much the same way. The Defendant's lawyer may then make a similar opening statement, or may wait until after the Plaintiff's case has been fully presented, or not make one at all. The opening statements tell you what the opposing parties claim the facts are, and they outline the evidence by which the parties expect to prove what they say are the facts.
Testimony is statements made by a witness under oath at the trial.
An exhibit is a physical article, such as a document, a weapon, a photograph, introduced at the trial to be considered by the jury in determining the facts of the case. Sometimes the testimony of a witness will have been given outside the courtroom and is read to the jury. Theu record of that testimony is called a deposition. Or the testimony may have been given at a different trial, in which case the written record is called a transcript. Sometimes videotaped depositions are allowed in certain circumstances.