The Supreme Court of Guam is the highest judicial body of the United States territory of Guam. The Court hears all appeals from the Superior Court of Guam and is subject to original jurisdiction only in cases where a certified question is submitted to it by a U.S. Federal Court, the Governor of Guam, or the Guam Legislature. The Supreme Court of Guam is the ultimate judicial authority on local matters. Appeals of questions involving the U.S. Constitution or federal laws or treaties are heard by a three-judge appellate panel of the U.S. District Court of Guam.The Court sits in the Monessa G. Lujan Memorial Courtroom, which is on the third floor of the Guam Judicial Center in Hagatna, Guam.