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 Wyoming, evidence is regulated by both state statutes and rules of court, specifically the Wyoming Rules of Evidence. These rules govern the admissibility of evidence in legal proceedings in the state's courts. Evidence must be relevant to be admissible, meaning it must have any tendency to make a fact more or less probable than it would be without the evidence, and the fact must be of consequence in determining the action. Witness testimony, documents, and other forms of evidence such as emails, photographs, and recordings, as mentioned, can all be introduced in court if they meet the criteria of relevance and are not excluded by other rules, such as those pertaining to hearsay, privilege, or authenticity. The Wyoming Rules of Evidence also address the qualifications of witnesses, the examination of witnesses, expert testimony, and the preservation of evidence for appeal. It is important for parties in a legal proceeding to understand these rules to effectively present their case or defend against claims.