French v. Hall was a United States Supreme Court case that dealt with the issue of whether a state court had the authority to issue a writ of habeas corpus to a prisoner held in a federal prison. The case arose when a prisoner, John French, was held in a federal prison in the state of Georgia. French sought a writ of habeas corpus from the state court, claiming that he was being held in violation of the Constitution. The state court granted the writ, and the federal government appealed the decision to the Supreme Court. The Supreme Court held that the state court did not have the authority to issue a writ of habeas corpus to a prisoner held in a federal prison. The Court reasoned that the writ of habeas corpus was a federal prerogative, and that the state court did not have the authority to interfere with the federal government's power to imprison individuals. The Court also noted that the writ of habeas corpus was a fundamental right, and that the state court should not be allowed to interfere with the federal government's power to imprison individuals. In conclusion, the Supreme Court held that the state court did not have the authority to issue a writ of habeas corpus to a prisoner held in a federal prison. The Court reasoned that the writ of habeas corpus was a federal prerogative, and that the state court did not have the authority to interfere with the federal government's power to imprison individuals. The Court also noted that the writ of habeas corpus was a fundamental right, and that the state court should not be allowed to interfere with the federal government's power to imprison individuals.

Justice Field delivered the dissenting opinion in French v. Hall, arguing that the court should not have reversed the decision of the Supreme Court of California on procedural grounds. He argued that a federal court must accept as true all facts found by a state court and cannot re-examine them unless they are clearly erroneous or contrary to law. In this case, he believed that there was no basis for reversing the findings of fact made by California's highest court since it had been established through testimony and other evidence presented at trial. Furthermore, Justice Field noted that even if some errors were committed during trial proceedings, those errors did not affect any substantial rights of either party and thus could be disregarded without prejudice to either side's legal position. Ultimately, he concluded that there was no reason why an appellate federal court should interfere with a judgment rendered by a competent tribunal in its own jurisdiction when such interference would result in injustice being done to one or both parties involved in litigation