Senate Bill 1166, also known as House Bill 1274, amends Tennessee law regarding arrests for operating vehicles under the influence (DUI). The bill mandates that the Tennessee Bureau of Investigation (TBI) produce an annual report for the speakers of the Senate and House of Representatives. This report, due by January 1, 2026, and each January 1 thereafter, will detail instances from the most recent year where individuals were arrested for DUI under Tennessee Code Annotated § 55-10-401, but no alcohol or intoxicants were detected in their blood or breath. Additionally, the report must specify the law enforcement agency responsible for each arrest.

The bill aims to enhance transparency and data collection regarding DUI arrests, particularly focusing on cases where no substances are found, which may indicate potential issues in law enforcement practices or the need for further training. The act will take effect immediately upon becoming law, emphasizing the importance of public welfare in its implementation.