Driving with any level of alcohol or drugs in your system may be a punishable offense in Missouri. However, it is important to understand the specific Missouri DWI definitions and guidelines when discussing DWI charges.

What Does DWI Mean?

DWI in Missouri refers specifically to driving while intoxicated. This pertains to having consumed alcohol before getting behind the wheel of a motor vehicle.

You may be charged with DWI if you are found to have a blood alcohol concentration (BAC) of .08 percent or more.

  • If you are driving a commercial vehicle, you may be charged if your BAC is .04 percent or more.
  • If you are a minor, for whom it is illegal to drink alcohol, you may be charged if your BAC is .02 percent or more.

Your BAC will be determined by a variety of tests, including a Breathalyzer on the scene, as well as breath, blood and urine tests at the police station after your arrest. Officers will usually put you through a variety of field sobriety tests to determine your visible level of intoxication.

What Does DUI Mean?

DUI means driving under the influence, which specifically refers to being under the influence of drugs. Whether it is illegal drugs or prescription drugs, if the substances alter your perceptions and render you incapable of safely driving, you may be charged with DUI. The substances and concentration of those substances will be determined through blood or urine tests at the police station. However, officers may conduct field sobriety tests as they would for an alcohol violation to determine how affected your senses, reflexes and motor control are.

Get Help Understanding DWI Terms From A St. Louis Lawyer

You are not alone in the fight against DWI/DUI charges. At the office of Travis Noble, P.C., we pride ourselves on our track record of success in these cases. Let an attorney at our firm help you understand your rights and options before making any decisions. Contact us online or call us at 314-450-7849 or 866-794-0947 to schedule a free consultation.

Past results afford no guarantee of future results and every case is different and must be judged on its own merits. The choice of a lawyer is an important decision and should not be based solely upon advertisements. This disclosure is required by rule of the Supreme Court of Missouri.