DUI in Montana: Understanding the Law and Protecting Your Rights A Driving Under the Influence (DUI) charge in Montana is a serious matter with potentially life-altering consequences. Unlike some other states, Montana takes a particularly stringent stance on impaired driving, and navigating its complex legal landscape without experienced counsel can be a grave mistake. This article will break down what you need to know about DUI in the Treasure State, from the initial stop to potential penalties and crucial steps to protect your future. What Constitutes a DUI in Montana? In Montana, a person can be charged with DUI in several ways: ⚖️ Per Se Impairment: Driving or being in actual physical control of a vehicle with a Blood Alcohol Concentration (BAC) of 0.08% or greater. For commercial drivers, this limit drops to 0.04%, and for drivers under 21, it's 0.02%. 🧠Actual Impairment: Driving or being in actual physical control of a vehicle whi...