First Call Attorney℠
DUI
Understanding DUI laws in Mississippi is essential for anyone facing charges or wanting to protect their rights. The state takes driving under the influence seriously, and the consequences can affect your driving privileges, criminal record, career, and freedom.
Understanding the Mississippi DUI Statute
Mississippi law defines DUI under Miss. Code § 63-11-30. The law prohibits operating a vehicle if your blood alcohol concentration (BAC) is 0.08% or higher for drivers 21 and over. It also makes it illegal to drive while impaired by alcohol, prescription medication, or illegal drugs—even if your BAC is below 0.08%. Drivers under 21 face a much lower limit of 0.02% under the state’s zero-tolerance policy.
Police officers can also arrest a driver based on observed impairment, such as slurred speech or poor coordination, regardless of BAC. Because of these rules, it’s critical to understand how Mississippi defines and enforces DUI laws before entering the courtroom.
Key Components That Influence Your DUI Case
The severity of a DUI charge in Mississippi depends on several factors, including prior offenses, the driver’s BAC level, whether minors were in the vehicle, and whether an accident caused injury or property damage. Repeat offenses and aggravating factors increase penalties. A first-time DUI often brings lighter penalties, while a third offense within five years becomes a felony with mandatory jail time.
The Mississippi DUI overview page provides a detailed breakdown of how DUI cases are handled throughout the state and what you can expect during the process.
Blood Alcohol Limits and Testing
Mississippi has specific BAC thresholds for different drivers:
- 0.08% for adults over 21
- 0.04% for commercial drivers
- 0.02% for drivers under 21
Mississippi’s implied consent law requires all licensed drivers to submit to chemical testing when lawfully arrested for DUI. Refusing a breath, blood, or urine test results in an automatic license suspension—even if you are later found not guilty. The DUI process in Mississippi explains how implied consent impacts your case and what steps you can take to challenge a suspension.

Enhanced Penalties and Aggravating Factors
Certain circumstances can lead to enhanced DUI penalties in Mississippi. These include:
- A BAC of 0.15% or higher
- Causing an accident resulting in injury or death
- Having a passenger under 16 in the vehicle
- Driving on a suspended or revoked license
A DUI that causes injury or death may be charged as a felony, which can lead to years in prison. The First Offense DUI page details how penalties escalate with repeated or aggravated offenses.
Administrative and Criminal Consequences
A DUI in Mississippi triggers both administrative and criminal consequences. Administrative penalties come from the Department of Public Safety (DPS), while criminal penalties come through the courts. This dual system means a driver could lose their license before being convicted in court.
Administrative penalties often include an immediate suspension after arrest. Criminal penalties depend on the case details. A first DUI conviction carries fines of $250 to $1,000, up to 48 hours in jail, and mandatory enrollment in the Mississippi Alcohol Safety Education Program (MASEP). A second conviction within five years increases the fines and jail time, and a third becomes a felony offense. Details on this process can be found in our guide to DUI court procedures in Mississippi.
How the Court Process Works
DUI cases follow two tracks: administrative and criminal.
- The administrative case determines whether you keep your driving privileges.
- The criminal case determines guilt and sentencing.
Defendants must address both quickly to minimize long-term effects. The administrative suspension can begin immediately, while the criminal trial may take months. Consulting an attorney early helps ensure deadlines for hearings or appeals are met. For more guidance on what to expect, see The DUI Process in Mississippi.
Building a Strong Defense
Every DUI case has unique facts. A skilled attorney can review the arrest process, field sobriety tests, and lab results to identify errors that could lead to dismissal or reduced charges. Some cases qualify for non-adjudication, allowing first-time offenders to avoid a formal conviction after completing court requirements. Read more about non-adjudicated DUI outcomes in Mississippi.
If you or someone you know has been charged with DUI in Mississippi, contact a defense attorney familiar with local courts. The right strategy can protect your rights and help you move forward after an arrest. Visit Mississippi Lawyers DUI Defense to learn more about your legal options.












