The Crimes Act of 1790 (or the Federal Criminal Code of 1790), formally titled An Act for the Punishment of Certain Crimes Against the United States, defined some of the first federal crimes in the United States and expanded on the criminal procedure provisions of the Judiciary Act of 1789. The Crimes Act was a "comprehensive statute defining an impressive variety of federal crimes". As an enactment of the First Congress, the Crimes Act is often regarded as a quasi-constitutional text. The punishment of treason, piracy, counterfeiting, as well as crimes committed on the high seas or against the law of nations, followed from relatively explicit constitutional authority. The creation of crimes within areas under exclusive federal jurisdiction followed from the plenary power of Congress over the "Seat of the Government", federal enclaves, and federal territories. The creation of crimes involving the integrity of the judicial process derived from Congress's authority to establish such courts. The Crimes Act also established a statute of limitations for federal crimes, provided for criminal venue, ensured procedural protections for treason and capital defendants, simplified the pleading requirements for perjury, and provided protections broader than those in the Constitution against corruption of blood. Further, the act provided for punitive dissection of murderers and codified diplomatic immunity. Background Even after the passage of the Judiciary Act of 1789, "the definition of crimes and the establishment of punishments" remained a "missing link of the criminal system". The Judiciary Act of 1789 divided original jurisdiction for the trial of federal crimes between the district courts and the circuit courts. The district courts were given jurisdiction over all federal crimes "where no other punishment than whipping, not exceeding thirty stripes, a fine not exceeding one hundred dollars, or a term of imprisonment not exceeding six months, is to be inflicted". The circuit courts were given concurrent jurisdiction over these crimes, and exclusive jurisdiction over all other federal crimes. The circuit courts also exercised appellate jurisdiction over the district courts, but only in civil cases. The Judiciary Act of 1789 also placed the responsibility for prosecuting federal crimes in the United States Attorney for each federal judicial district. The Act provided that "there shall be appointed in each district" a "person learned in the law to act as attorney for the United States in such district, who shall be sworn or affirmed to the faithful execution of his office, whose