Tucson DUI and Criminal Defense Lawyers

Let Arizona’s Only Certified Defense Team Fight for You

Arrested or under investigation? Turn to Arizona’s award-winning defense team, Nesci & St. Louis, PLLC. Our firm represents clients accused of crimes and those under investigation throughout Arizona. Our team of Tucson criminal lawyers is committed to obtaining the best results possible for you.

We will file motions challenging the government’s case on every factual and legal issue, and we regularly obtain the dismissal of charges for our clients prior to trial. If your case cannot be dismissed prior to trial, we are not afraid of going to trial and have successfully handled cases involving charges that include:

  • Vehicular homicide
  • DUI
  • Sex offenses
  • Drug offenses
  • White collar crimes
  • Theft
  • Capital murder

100% Focused on Criminal Defense

While other firms dilute their resources by attempting to handle multiple areas of law, Nesci & St. Louis, PLLC is exclusively focused on the defense of the criminally accused. By concentrating entirely on defending individuals accused of crimes, we are able to devote the time and resources necessary to obtain a deep understanding of the legal and factual issues facing those accused of a crime. In fact, our Tucson criminal defense attorneys are sought-after speakers nationally, regularly training criminal defense lawyers across the Country on how to handle a criminal case. This allows us to provide the very best representation possible.

In criminal cases, time is of the essence. Act now to ensure that no evidence necessary to your defense is lost. Contact our proven law firm today. We’re here to defend your rights in state and federal criminal matters. Call (520) 999-2441 to start your defense today.

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The Other DUI Squad,
Representing Clients Throughout Arizona

James Nesci is not only the former Dean of the National College for DUI Defense (NCDD), a nation-wide defense organization with over 1,600 members, he literally wrote the book on DUI for Arizona. Nesci’s Arizona DUI Defense, The Law and the Practice, now in its 4th edition, is relied on by defense practitioners throughout Arizona. Jim is not only a renowned author in Arizona, he has co-authored DUI defense manuals in 18 states. Jim is board-certified as a specialist in DUI defense by NCDD, a certification recognized by the American Bar Association.

Joseph P. St. Louis is the only attorney in Arizona certified as a specialist in both Criminal Defense (by the State Bar of Arizona) and in DUI Defense (by the National College for DUI Defense (NCDD), a certification recognized by the American Bar Association). Joe is one of 14 members of the Board of Regents of NCDD, a nation-wide organization with over 1600 members. He is the former President of Arizona Attorneys for Criminal Justice. In The Media

Awards &

  • Arizona Certified
    Arizona Certified
  • Best Law
    Best Law
  • Avv0
  • Super Lawyers
    Super Lawyers
  • AV Preeminent
    AV Preeminent
  • Tuscon Lifestyle
    Tuscon Lifestyle
  • Avvo Superb
    Avvo Superb
  • Avvo Superb
    Avvo Superb
  • Best Law Firms
    Best Law Firms

Arizona’s Award-Winning Defense Team

We have more than 80 years of combined criminal and DUI defense trial experience. Put our attorneys in your corner!

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Don't Delay, Contact Us Today!

Time is of the essence in criminal cases. Get in touch with an experienced criminal defense and DUI lawyer today.

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Nationwide Leaders in Criminal Defense

  • Backed by Nearly a Century of Combined Experience
  • Exclusively Focusing on DUI Criminal Defense Law
  • Award-Winning Arizona Criminal Defense Firm
  • The Only Certified Team in the Entire State
  • Aggressive Representation Delivered Every Time
  • Former Public Defenders

Cases We Defend

Nesci & St. Louis, PLLC provide the proven and aggressive defense you deserve for your case.

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Proven Defense Attorney. Profound Author.

Among Mr. Nesci's many accomplishments in the field of law include his recognition as a renowned published author. His written works have reached law firms, and even households nationwide. In addition to authoring legal treatise Nesci's Arizona DUI Defense: The Law & Practice, 4th Edition, designed for defense lawyers and the like, he has co-authored many criminal defense-related books catered specifically to Alabama, Arkansas, Colorado, Florida, Iowa, Missouri, Nebraska, New Hampshire, New Jersey, North Carolina, Oklahoma, Texas, Utah, Virginia, West Virginia, and Wisconsin justice systems. Mr. Nesci also served as a contributing author for MedicoLegal Aspects of Alcohol, on both the 5th and 6th editions. Consumers can also learn a wealth of knowledge about the DUI process by taking heed to his advice in his book, How to Beat a DUI.

Many of Mr. Nesci's publications are available online at Lawyers & Judges Publishing.

Our Books

You Deserve a Fresh Start, Just Like Our Past Clients.

  • 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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