 After surveying the answers to this question provided by other circuit and state courts, the North Carolina Supreme Court concluded that the Eighth Circuit's answer — that an officer may make a mistake of law and yet still act reasonably in making a stop based solely upon that mistake — was correct, declining to adopt eight other federal circuit courts' answer.It then concluded that Sergeant Darisse's mistake of law was objectively reasonable and that he had reasonable suspicion to stop Heien's vehicle.Heien petitioned the Supreme Court for a writ of certiorari.