Judicial notice is a court’s acceptance of a well-known and indisputable fact without requiring the party relying on the fact to prove it. The doctrine of judicial notice is one of common sense, and is based on the theory that where a fact is well-known in the community—or its existence is easily determined from sources that cannot be reasonably questioned—it would not be a good use of judicial time and resources to require formal proof of the fact in court. A court may take judicial notice of both facts and laws.
In Wyoming, as in other jurisdictions, the concept of judicial notice allows courts to accept certain facts that are commonly known within the community or can be verified from unquestionable sources without requiring formal proof. This doctrine is rooted in the interest of judicial economy, recognizing that it would be unnecessary and inefficient to prove facts that are already indisputable or easily verifiable. Wyoming courts can take judicial notice of both adjudicative facts—those that are not subject to reasonable dispute because they are generally known or easily proven—and laws, which include statutes, regulations, and case law. The rules governing judicial notice in Wyoming are generally consistent with the Federal Rules of Evidence, particularly Rule 201, which outlines the parameters for when and how a court may take judicial notice of a fact or law.