The process of denaturalization is a legal procedure which results in nullifying nationality. Based upon the 1943 Supreme Court decision of "Schneiderman v. United States", clear and convincing evidence must be evaluated in processing a denaturalization action. United States Attorneys for the district in which a defendant resides bring suit in the jurisdiction's Federal District Court. Juries are typically not present and the defendant may be compelled to testify. Failure to testify may result in a presumption of guilt, though defendants can plead against self-incrimination. The standard of proof is not reasonable doubt, but rather clear, convincing, and unequivocal evidence. Decisions may be appealed in federal appellate courts and the Supreme Court. Once the legal process has concluded, the Department of State issues a Certificate of Loss of Nationality.