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Defendant objects on the ground of lack of authentication and hearsay.
In a suit for damages for assault and battery arising out of a fight between plaintiff and defendant at work, the defendant calls a witness whose testimony is that about a month prior to the incident in the case at trial, the plaintiff had gotten mad at the witness and loudly cursed him in a crowded restaurant. In a personal injury case against a bus company, the plaintiff's theory was that the bus had defective brakes. Before the trial, plaintiff's attorney hired a mechanical engineer to investigate the bus and be an expert witness. At the trial, the defense objects to the engineer's expert testimony on the ground that the witness did not personally inspect the bus. Plaintiff, who was fired from his job as an insurance agent sues the company on a theory of wrongful determination.