Tucson DUI Lawyers

The DUI Defense Firm You Want on Your Side

Nesci & St. Louis, PLLC is a nationally recognized, respected Tucson DUI firm. We have earned our reputation as uncompromising, effective DUI defense lawyers by employing our aggressive litigation style and using our extensive training to accomplish the best results possible for our clients. Learn how our attorneys’ combined experience of more than 80 years and vast knowledge of Arizona DUI laws bring you the best possible outcome in your drunk driving charge.

Effective Defenses in Challenging DUI Cases

Because our law firm is 100 percent dedicated to criminal and DUI defense, we devote all our efforts and resources to developing successful tactics to fight charges in the criminal justice system. We take on the most challenging DUI cases, including:

  • Felony "Aggravated" DUI Offenses — Felony aggravated DUI charges are filed if you have had two prior DUIs within seven years, you were driving on an invalid driver license at the time of your DUI arrest or you had a child under the age of 15 in the vehicle while driving under the influence.
  • Extreme DUI and Super Extreme DUI — Extreme and super extreme DUI are defined by drunk driving statutes that apply to blood or breath alcohol content (BAC) of .180 percent or greater, and these charges result in enhanced penalties.
  • Minor Driving with Alcohol — Arizona applies zero tolerance DUI laws that penalize underage drinkers for driving with even trace amounts of alcohol or drugs in their systems.
  • DUI with Prior DUI Offenses & DUI while on Suspended License — A drunk driving arrest with prior DUI offenses or a DUI while driving on a suspended license can result in a more severe sentence, and you may possibly be charged with an aggravated felony DUI.
  • Driving while under the Influence of Illegal Drugs or Prescription Medications — You can be charged with DUI for driving while using prescription, over-the-counter or illegal drugs.
  • DUI Roadblocks & DUI Checkpoints — Protect your rights if you encounter DUI checkpoints or roadblocks by reading suggestions from our experienced DUI defense lawyers.
  • Commercial DUI — Being charged with DUI while driving on a commercial driver’s license may result in the loss of your CDL for a year, with a second DUI leading to lifetime loss of your CDL.
  • License Suspension Hearings — Arizona allows you to challenge the suspension of your driving privileges at a motor vehicle license suspension hearing, which is a separate procedure from your criminal case.
  • DUI Manslaughter & DUI Homicide — You can be charged under Arizona’s felony endangerment, aggravated assault, manslaughter or even second degree murder statutes for a DUI accident that causes serious injuries or death.
  • DUI with Child Abuse/Endangerment Charges — In addition to felony aggravated DUI charges, you may face companion child abuse or child endangerment charges if you are accused of driving while intoxicated with a child under the age of 15 in your vehicle.

Consult with an experienced DUI lawyer in Tucson for the best results in your case. Call Nesci & St. Louis, PLLC today at (520) 999-2441 or contact us online to schedule your free initial consultation.


  • Nesci & St. Louis, PLLC Jim Nesci is a renowned national expert in the field of DWI offense.

    - Anonymous

  • Nesci & St. Louis, PLLC Joseph St. Louis is simply the best defense lawyer in Tucson!

    - Yelp Review, Former Client

  • Nesci & St. Louis, PLLC What at 1st seemed like an inevitable guilty verdict, eventually resulted in the dismissal of the case by the judge.

    - Peter, Avvo Review

  • Nesci & St. Louis, PLLC Though it seemed the evidence was overwhelmingly against me, Mr. St. Louis took the case and fought valiantly on multiple fronts.

    - Former Client, Avvo Review

  • Nesci & St. Louis, PLLC If you EVER need representation, these are the guys you want on YOUR side!!!

    - Megan Torrie

  • Nesci & St. Louis, PLLC My case was dismissed a few months ago and I am forever grateful! Joe helped me get a second chance

    - Avvo Review, Former Client

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