Arizona's Only Certified CRIMINAL DEFENSE TEAM

Losing Your Freedom Is Not an Option

Reputation for Excellence

Top-Notch Criminal Defense
  • Best Law Firms U.S. News 2021
    Best Law Firms U.S. News 2021
  • Since 2013
    Since 2013
  • Since 2010
    Since 2010
  • Since 2013
    Since 2013
  • <p>

  • Best Lawyers since 2013
    Best Lawyers since 2013
  • <P>

  • <P>


Tucson Criminal Defense Attorneys

Award-Winning Criminal Defense Team in AZ

We Will Fight to Protect Your Future

Arrested or under investigation? Turn to Arizona’s award-winning defense team, Nesci & St. Louis. Our firm represents clients accused of crimes and those under investigation throughout Arizona. Our team of Tucson criminal defense lawyers are 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:

Focused Criminal Defense Lawyers in Tucson

Protecting the Rights of those Accusedby the Government

While other firms dilute their resources by attempting to handle multiple areas of law, Nesci & St. Louis is exclusively focused on defending the criminally accused. By concentrating solely on criminal cases, 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 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 Nesci & St. Louis online or call (520) 999-2441 to request a FREE case evaluation with a Tucson criminal defense lawyer today. We are here to defend your rights in state and federal criminal matters.

Meet Your Award-Winning Team

Over 40 Years of Combined Experience
A National Leader In the Legal Field

Attorney Joe St. Louis is known in the legal field for his knowledge, experience and ability to be a leader.

Criminal Defense Lawyer Near Me

Representing Clients Throughout Arizona

Joseph P. St. Louis has been listed in Woodford & White’s Best Lawyers in America since 2013 and has an AV Preeminent rating from Martindale Hubbell. He has been listed as one of the best lawyers in Arizona by Superlawyers magazine since 2009 and has been listed as one of the best lawyers in Tucson by Tucson Lifestyles magazine since 2103. Joe, who has represented clients at over 200 jury trials, 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 11 members of the Board of Regents, the governing body of the National College for DUI Defense, a nation-wide organization with over 1600 members. He is also the former President of Arizona Attorneys for Criminal Justice, a statewide defense organization with over 400 members.

Ryan Huffman vigorously represents accused individuals throughout all stages of litigation, including trials and appeals. His experience includes both misdemeanor and felony criminal matters. He focuses on a pretrial motion practice, seeking to have his clients’ cases dismissed prior to trial, and is passionate about advocating against unethical police tactics and procedures. Not afraid to take a case to trial, after demonstrating issues with the way in which the case was charged, Ryan recently negotiated a plea to probation in the middle of a trial in which his client was facing life in prison. Other recent trial wins for Ryan include an acquittal for a client with an alleged blood alcohol concentration of .131, and successfully demonstrated to a jury trial that a reported breath test result of .250 was unreliable, resulting in a complete acquittal of all BAC charges for his client.

Sean McNally is a litigator specializing in Criminal and DUI offenses. Prior to his career in law, Sean served with distinction in the United States Air Force for 20+ years, predominantly as a Tactical Aircraft Maintenance Superintendent. Since joining Nesci & St. Louis, Sean has focused on pretrial litigation and trial work in DUIs, misdemeanors, and felonies in courts throughout Arizona. Sean’s recent wins include having a client facing mandatory prison time acquitted of all felony charges at trial. Sean has also convinced a judge to throw out his client’s prior convictions, changing a felony case in which his client faced mandatory prison time to a first-time misdemeanor DUI. Sean also had all of his client’s charges dismissed by the court, after getting a law enforcement officer to admit under oath that he had falsified records, eventually resulting in the officer being fired.

Premier Criminal Defense and 
DUI Defense Attorneys

Our Firm Is Different

Nationwide Leaders in Criminal Defense
  • National Leaders in the Field of Criminal Defense
  • The Only Attorney Certified in Both Criminal Law and DUI Defense in Arizona
  • Aggressive Representation Delivered Every Time
  • Exclusively Focusing on DUI, Criminal Defense Law and Civil Rights Violations and Injuries by Government Employees
  • Backed by Nearly Forty Years of Combined Experience

Contact Nesci & St. Louis Today

Time Is of the Essence - Get In Touch Now
  • Please enter your first name.
  • Please enter your last name.
  • Please enter your phone number.
    This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please make a selection.
  • Please enter a message.

Proven Defense Attorney & Profound Author

Nesci Literally Wrote the Book on "DUI"

Among Mr. Nesci's many accomplishments in the field of law, which continue in his retirement, is his recognition as a renowned published author. His written works can be found in law firms throughout the country, and even in the households of non-lawyers nationwide. In addition to authoring the legal treatise Nesci's Arizona DUI Defense: The Law & Practice, 5th Edition, designed for defense lawyers and allied professionals, he has co-authored many state specific criminal defense-related books for the 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 to Medicolegal Aspects of Alcohol, writing chapters for both the 5th and 6th editions. Consumers can also gain a wealth of knowledge about the DUI process by following the advice in his book, How to Beat a DUI.

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


Hear It from Our Clients
  • “I highly recommend Nesci & St. Louis to anyone who is searching for a knowledgeable, experienced, and assertive attorney. Mr. Joe St. Louis worked extremely diligently and fought for me to get me the ...”

  • “Joe St Louis recently represented me in a serious matter and obtained the best outcome possible in a very bad situation. Joe was referred to me by a top Phoenix firm, and the referral proved well ...”

  • “I had no idea what to do. I had just been charged w/ an extreme DUI the day before Thanksgiving and my world that I had built and sacrificed for was slowly crumbling away. I had previously hired the ...”

    - Anon
  • “You always hope you'll never need an attorney, but when your life hits rock bottom and just keeps piling on, you need someone who is truly in your corner. Details aside, I did a bit of research online ...”

    - Kimberly M.
  • “I have never had such a good experience with an attorney before! Sean and his office staff and everyone I dealt with were beyond professional, responsive, and educated me on a great deal. The issue ...”

    - Brittany L