Wisconsin Act 99: New Law Authorizes Oral Fluid Testing in OWI Investigations
Analysis of 2025 Wisconsin Act 99 (Senate Bill 678) Wisconsin has enacted a significant update to its implied consent and intoxicated operation laws. 2025 Wisconsin Act 99, signed into law in March 2026, authorizes law enforcement officers to use oral fluid screening as a preliminary tool when investigating suspected intoxicated operation of vehicles. The legislation expands the scope…