Boating under the influence in Mississippi means operating a vessel while impaired by alcohol or drugs so that safe operation is compromised. Law enforcement may rely on observable signs of impairment, standardized field tests, and chemical testing such as breath or blood samples. The specific facts of each stop—how the vessel was being operated, whether there was an accident, and the environmental conditions—are considered when determining if an offense occurred. Understanding the statutory standards and local enforcement practices helps evaluate potential defenses. Eyewitness accounts, inconsistencies in officers’ reports, or procedural errors in testing can be relevant. Early review of the arrest and testing documentation is important to identify issues that could affect the case outcome.