If somebody refuses the PBT, then the officer will have to use other observations to determine whether probable cause exists to arrest an individual for impaired driving. The officer will have to take into account things such as their observation of the suspect’s driving, SFST performance, an odor of alcohol emanating from the individual, what the individual said, whether the individual was unsteady on their feet, and other indicators of intoxication. The result from the PBT is just one of many potential indicators of intoxication. There is no criminal or driver’s license penalty for refusing to blow into a PBT.