Sobriety checkpoints are not authorized in Iowa (see Iowa's Road Use Tax Fund Laws at Chapter 312K). Sobriety checkpoints are random traffic stops, not tied to any specific suspicions. At one of these checkpoints, drivers are briefly questioned after which suspicious drivers are subject to field sobriety tests. Despite the fact that these checkpoints consistently reduce alcohol-related crashes, typically by 9%, Iowa has determined not to implement them.
Learn more about Iowa's DUI laws.