Evidence is anything that tends to prove or disprove a material or relevant fact alleged in a lawsuit or other legal proceeding. Witness testimony, documents, contracts, email messages, photographs, medical bills, video images, and voice recordings are common pieces of evidence.
In Ohio, evidence is regulated by both state statutes and the Ohio Rules of Evidence. These rules determine what evidence is admissible in court to prove or disprove facts pertinent to a case. The types of evidence mentioned, such as witness testimony, documents, contracts, email messages, photographs, medical bills, video images, and voice recordings, can all potentially be used in legal proceedings. However, for evidence to be admissible, it must be relevant, meaning it has any tendency to make a fact more or less probable than it would be without the evidence. Additionally, the evidence must be material, which means it is related to a fact that is of consequence to the determination of the action. The evidence must also be competent, not excluded by an established rule, such as the rule against hearsay, unless an exception applies. The Ohio Rules of Evidence also address the authentication of evidence, the examination of witnesses, expert testimony, and the preservation of evidence for appeal. Attorneys in Ohio must navigate these rules to effectively present their cases in court.