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 California, evidence is regulated by both state statutes and case law, which define what is admissible in court to prove or disprove facts in a legal proceeding. The California Evidence Code sets forth the rules for what is considered evidence and how it can be used. This includes witness testimony, documents, contracts, email messages, photographs, medical bills, video images, and voice recordings, among other types of evidence. The admissibility of evidence is subject to various criteria, such as relevance, materiality, and the absence of hearsay, unless an exception applies. Evidence must be relevant to the issues being decided in the case and must not be overly prejudicial, misleading, or a waste of time. California courts also adhere to the principles of the Federal Rules of Evidence to some extent, although there are differences in how state and federal rules are applied. It is important for parties in a legal proceeding to understand these rules, as improper handling or presentation of evidence can affect the outcome of a case.