(AP) — The Supreme Court says it will weigh whether a motorist’s anonymous tip about reckless driving is enough for police to pull over a car, without an officer’s corroboration of dangerous driving.

The justices said Tuesday they will take up an appeal by two men who pleaded to guilty to transporting marijuana after California Highway Patrol officers pulled over their silver Ford 150 pickup based on a report of reckless driving.

The officers did not observe erratic driving, but acted after dispatchers received a 911 call saying the vehicle had run the caller off the road and identifying it by its model, color and license plate. Officers searched the truck after smelling marijuana, found four large bags of it and arrested driver Lorenzo Prado Navarette and passenger Jose Prado Navarette.