The Court affirmed the district court's denial of the defendant's motion to suppress based on a federal search warrant that was based on a defective state warrant. Though the Court agreed with the defendant that “any probable cause deficiency with the state search warrant would, as a matter of law and logic on these facts, heavily inform any conclusion we reach about the sufficiency of probable cause in the federal warrant application,” the Court upheld denial of the motion to suppress since the federal agents acted in good faith when they relied on the state warrant. The Court held that the focus should have been on the federal agents, who had no reason to question the integrity of the state proceedings, though the Court acknowledged that the result may have been different if the record reflected that the FBI had more knowledge about the state court proceedings