DUI Laws in Missouri
August 27, 2023
The open road beckons, promising freedom and adventure to all who traverse it. Yet, the allure of the road also comes with responsibilities, and chief among them is the duty to drive safely and responsibly. In the state of Missouri, as in every other corner of the nation, the dangers of impaired driving cast a shadow over the highways and byways.
Driving Under the Influence (DUI) laws stand as a formidable barrier against the recklessness of intoxicated driving, aiming to protect not only the drivers themselves but also the countless lives they encounter on their journeys. Today, we will dwell on the intricacies of DUI laws in Missouri, shedding light on the legal framework that seeks to strike a balance between personal freedom and public safety.
We'll explore the penalties that can reshape lives, the concept of implied consent that underscores the responsibilities of drivers, and the gravity of underage drinking and driving within the state's borders.
Driving Under the Influence (DUI) laws stand as a formidable barrier against the recklessness of intoxicated driving, aiming to protect not only the drivers themselves but also the countless lives they encounter on their journeys. Today, we will dwell on the intricacies of DUI laws in Missouri, shedding light on the legal framework that seeks to strike a balance between personal freedom and public safety.
We'll explore the penalties that can reshape lives, the concept of implied consent that underscores the responsibilities of drivers, and the gravity of underage drinking and driving within the state's borders.
DUI Laws in Missouri
In Missouri, DUI stands for "Driving Under the Influence." The state has strict laws regarding impaired driving, and the legal blood alcohol concentration (BAC) limit for most drivers is 0.08%. However, lower limits apply to certain groups, such as commercial drivers and drivers under the legal drinking age.
Here are some key points about DUI laws in Missouri:
Here are some key points about DUI laws in Missouri:
BAC Limits
For drivers 21 years and older: The legal BAC limit is 0.08%.
For drivers under 21: A BAC of 0.02% or higher can result in penalties, as Missouri has a "zero tolerance" policy for underage drinking and driving.
For commercial drivers: The legal BAC limit is 0.04% when operating a commercial vehicle.
Penalties
Penalties for DUI convictions in Missouri can vary based on factors such as the number of prior offenses and the specific circumstances of the case. Penalties can include fines, license suspension, mandatory alcohol education programs, probation, and even jail time.
Implied Consent
Missouri has an "implied consent" law, which means that by operating a motor vehicle on the state's roadways, you are considered to have given your consent to submit to a chemical test (usually a breath, blood, or urine test) if arrested for suspected DUI. Refusing to take the test can lead to automatic license suspension.
Underage Drinking and Driving
Missouri has strict penalties for drivers under 21 who are caught driving with any detectable amount of alcohol in their system. This can result in license suspension, fines, and other consequences.
Aggravated DUI
Certain factors can lead to enhanced charges, often referred to as "aggravated DUI." These factors can include having a significantly high BAC, causing injury or death while driving under the influence, or having prior DUI convictions.
Ignition Interlock Device
In some cases, individuals convicted of DUI may be required to install an ignition interlock device in their vehicles. This device requires the driver to pass a breathalyzer test before the vehicle can be started.
How Long DUI Records Stays in Missouri
In Missouri, DUI (Driving Under the Influence) records can generally remain on a person's driving record for a significant period of time. However, it's important to note that the exact duration can vary based on the specifics of the offense and the laws in effect at the time.
Convictions and Points
DUI convictions can stay on your driving record for 10 years from the date of the conviction. Points assessed for the offense might also remain on your driving record for this duration.
Impact on Insurance Rates
DUI convictions can also have an impact on your auto insurance rates. Insurance companies typically review your driving record when determining rates, and a DUI conviction might lead to higher premiums for a number of years after the conviction.
Criminal Record
It's worth noting that a DUI conviction is also likely to result in a criminal record, which can have implications beyond your driving record. Criminal records are typically a matter of public record and can affect background checks for employment, housing, and other purposes.
License Suspension Period
The length of your driver's license suspension due to a DUI conviction can also vary based on factors such as whether it's a first offense, the
level of BAC
, and whether you refused a chemical test. While the suspension itself might not directly appear on your driving record after it's lifted, the DUI conviction associated with the suspension could remain.
How to Deal with a DUI
Consult an Attorney
One of the most important steps you can take is to hire an experienced
DUI attorney
. They can review the details of your case, explain the legal process, and provide guidance on the best strategies to handle your situation.
Understand the Evidence
Your attorney will analyze the evidence against you, including the results of any sobriety tests, breathalyzer tests, and other relevant information. They will assess whether any of this evidence was obtained unlawfully or could be challenged in court. One of the most important steps you can take is to hire an experienced DUI attorney. They can review the details of your case, explain the legal process, and provide guidance on the best strategies to handle your situation.
Investigate the Stop
Your attorney might investigate whether the police had a valid reason to stop you in the first place. If the stop was unjustified, it could impact the legality of any subsequent actions taken by law enforcement.
Challenging Test Results
DUI cases often involve breathalyzer or blood tests. Your attorney might challenge the accuracy of these tests by questioning the calibration of the testing equipment or the qualifications of the individuals administering the tests.
Field Sobriety Tests
Field sobriety tests are subjective and can be challenged in court. Your attorney might argue that these tests are not always accurate indicators of impairment.
Constitutional Rights
Your attorney will ensure that your constitutional rights were upheld during the arrest process. This includes rights such as the right to remain silent and the right to have an attorney present during questioning.
Negotiate or Challenge Charges
Depending on the specifics of your case, your attorney might negotiate with the prosecution for reduced charges or explore options for diversion programs or rehabilitation in exchange for a more lenient sentence.
Prepare a Strong Defense
Your attorney will work with you to build a solid defense strategy. This could involve presenting evidence, calling witnesses, and challenging the prosecution's case.
Trial or Plea
Depending on the strength of the case, your attorney might advise you to go to trial to challenge the charges or negotiate a plea deal if that's in your best interest.


Driving under the influence (DUI) is a serious offense that can have long-lasting consequences. Not only does it pose a danger to yourself and others on the road, but it can also result in legal consequences that can impact your life for years to come. One such consequence is a DUI conviction record.
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