Judicial Notice - Judicial Notice in The Federal Rules of Evidence

Judicial Notice in The Federal Rules of Evidence

In the United States, Article II of the Federal Rules of Evidence ("FRE") addresses judicial notice in federal courts, and this article is widely copied by U.S. States. FRE 201(b)) permit judges to take judicial notice of two categories of facts:

1. Those that are "generally known within the territorial jurisdiction of the trial court" (e.g. locations of streets within the court's jurisdiction) or
2. Those that are "capable of accurate and ready determination by resort to sources whose accuracy cannot reasonably be questioned" (e.g. the day of the week on a certain date).

The FRE also notes that judicial notice may be permissive or mandatory. If it is permissive, then the court may choose to take judicial notice of the fact proffered, or may reject the request and require the party to introduce evidence in support of the point. If it is mandatory, then the court must take judicial notice of the fact proffered. Although the FRE does not expand upon the kinds of facts that would fall into one category or another, courts have ruled that judicial notice must be taken of federal public laws and treaties, state public laws, and official regulations of both federal and local government agencies.