Perrin v. United States was a Supreme Court case that addressed the issue of whether a federal court had the authority to issue a writ of habeas corpus to a prisoner held in a state prison. The case arose when a prisoner, John Perrin, was held in a state prison in Louisiana for a crime he had committed in the state. Perrin sought a writ of habeas corpus from a federal court, arguing that he was being held in violation of the Constitution. The Supreme Court held that the federal court did not have the authority to issue a writ of habeas corpus to a prisoner held in a state prison. The Court reasoned that the writ of habeas corpus was a remedy available only to prisoners held in federal custody, and that the federal court did not have the authority to interfere with the state's criminal justice system. The Court also noted that the writ of habeas corpus was a remedy available only to prisoners held in federal custody, and that the federal court did not have the authority to interfere with the state's criminal justice system. The Court's decision in Perrin v. United States established that the federal court did not have the authority to issue a writ of habeas corpus to a prisoner held in a state prison. This decision has been cited in numerous subsequent cases, and has been used to support the principle that the federal court should not interfere with the state's criminal justice system.

In Perrin v. United States, the Supreme Court was tasked with determining whether a defendant could be convicted of larceny for stealing from an Indian reservation. The majority opinion held that Congress had exclusive authority to regulate commerce on Indian reservations and thus criminal laws did not apply in this case. Justice Field dissented, arguing that the Constitution does not grant Congress such broad powers over Indians or their property and that it would be unjust to allow individuals to commit crimes against them without consequence. He further argued that if Congress were given such expansive power, it would lead to a dangerous precedent where states' rights are disregarded and Native Americans are deprived of basic protections under law.