Sobriety checkpoints are not authorized in Wisconsin (see Wis. Stat. §349.02(2)(a) which prohibits sobriety roadblocks). 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%, Wisconsin has determined not to implement them.
Learn more about Wisconsin's DUI laws.