Officer Desai has been called to the scene where a recent model dark blue four-door BMW automobile is sitting on the shoulder of the road, unoccupied, with apparently recent damage to the front bumper of the vehicle and shell casings on the driver's seat. There is nobody around the car. When the officer's sergeant arrives they discuss what to do about the car.In the absence of shell casings, and if there are no persons around the vehicle, the officers_____________.