Joseph P. St. Louis is the only lawyer in Arizona certified as a Specialist in both Criminal Defense (Arizona State Bar, 2000 to present) and in DUI Defense (National College for DUI Defense, a certification recognized by the American Bar Association, 2012 to present).  Mr. St. Louis is AV ® PreeminentTM Peer Review Rated by Martindale-Hubbell® (5.0 out of 5.0), and is listed in Woodward/White’s Best Lawyers in America in the DUI specialty area.  He has been named to the Best Lawyers in Arizona and New Mexico by Super Lawyers magazine in the DUI specialty area since 2009, and was named one of the Best Lawyers in Tucson in the DUI specialty area by Tucson Lifestyle Magazine.

Mr. St. Louis is the past president of Arizona Attorneys for Criminal Justice, and serves as the co-chair for their annual Aggressive Defense of the Accused Impaired Driver seminar.  In 2003, at the request of the then-presiding chief judge of the Pima County Justice Courts, Mr. St. Louis served as a part-time Justice of the Peace.  In 2013, Mr. St. Louis was one of four lawyers who litigated a 17 day hearing in the Maricopa County Superior Court challenging the manner in which blood testing is performed in the Scottsdale City Crime Laboratory.  The hearing resulted in the  judge suppressing all blood evidence in 11 felony cases, after finding the results to be unreliable.

Mr. St. Louis is a frequent speaker on legal issues, and has spoken on a variety of legal topics at legal education seminars sponsored by a variety of State Bar and Defense Attorney organizations in Arizona, California, Georgia, Louisiana, Massachusetts, Mississippi, New Mexico, New York, Nevada, Oklahoma, Tennessee, Texas and Wisconsin.  Mr. St. Louis is a graduate of the National Highway Traffic Safety Administration (NHTSA)’s Student Course on Standardized Field Sobriety Testing, the NHTSA's Instructor Course on Standardized Field Sobriety Testing, and the American Chemical Society’s Forensic Chromatography Course.

Mr. St. Louis has tried several death penalty cases, both in state court, where he was lead counsel in Pima County’s first death penalty case tried completely to a jury (the client received a prison sentence after Mr. St. Louis convinced the jury not to impose the death penalty) and in federal court, where he was found to be qualified as “Learned Counsel,” a designation reserved for only the most qualified attorneys handling these cases.  Mr. St. Louis has the unique distinction of having had two back-to-back first-degree murder cases in which the judges dismissed all murder charges during trial.

Mr. St. Louis has tried over 150 cases to juries, on both misdemeanor and felony charges, in federal court and in state courts throughout Arizona.  He has also argued cases before the Arizona Court of Appeals, the Arizona Supreme Court, and the Ninth Circuit Court of Appeals.

Admissions:

  • Arizona State Bar, 1987
  • United States District Court, District of Arizona, 1987
  • Ninth Circuit Court of Appeals, 1993

Professional Associations:

  • National College for DUI Defense, Regent
  • National College for DUI Defense, Sustaining Member
  • National College for DUI Defense, Faculty
  • National Association of Criminal Defense Lawyers, Member
  • National College for DUI Defense, Sustaining Member
  • Arizona Attorneys for Criminal Justice, Member. President, 2006.
  • Vice President-South, 2001-2002, 2002-2003.
  • Arizona State Bar Association, Member
  • Pima County Bar Association, Member
  • Arizona State Bar Criminal Jury Instruction Committee, 2003-2006
  • Arizona State Bar Criminal Rules Committee, 2009-2010
  • Arizona State Bar Member Assistance Committee, 2001 to present. Chairman, 2003
  • Arizona State Bar Legal Services Committee, 1995-2000

Education:

Published Opinions:

  • State v. Bernstein, 2014 WL 118106 (App. 2014)
  • Carrillo v. Houser, 224 Ariz. 463, 232 P.3d 1245 (2010)
  • State v. Zaragoza, 221 Ariz. 49, 209 P.3d 629 (2009)
  • State v. Getz, 189 Ariz. 561, 944 P.2d 502 (1997)
  • United States v. Ramos, 39 F.3d 978 (9th Cir. 1994)
  • United States v. Ramos, 815 F.Supp 1304 (D.Ariz. 1993)
  • State v. Rowland, 172 Ariz. 182, 836 P.2d 395 (App. 1992)
  • State v. Greenway, 170 Ariz. 155, 823 P.2d 22 (1991)

Awards, Certifications & Significant Courses:

  • Certified Specialist in Criminal Law, State Bar of Arizona, 2000-present
  • NHTSA/IACP Standardized Field Sobriety Testing Practitioner Course, 2007
  • NHTSA/IACP Standardized Field Sobriety Testing Instructor Certification Course, 2007
  • The Top Attorneys in Arizona and New Mexico Super Lawyers, 2009
  • The Top Attorneys in Arizona and New Mexico Super Lawyers, 2010
  • District Award of Merit Boy Scouts of America, 2010
  • The Top Attorneys in Arizona and New Mexico Super Lawyers, 2011
  • Top Lawyers in Tucson - DUI Tucson Lifestyles Magazine, 2011
  • Top Lawyers in Tucson - Criminal Defense,  Tucson Lifestyles Magazine, 2011
  • American Chemical Society Forensic Chromatography III Course, 2011
  • The Top Attorneys in Arizona and New Mexico Super Lawyers, 2012
  • Certified Specialist in DUI Defense   National College for DUI Defense, 2012-present.
  • AV Preeminent Rating (5.0 out of 5.0) Martindale Hubbell, 2013
  • The Best Lawyers in America Woodward/White, 2013
  • The Top Lawyers in Arizona and New Mexico, 2013
  • Top Lawyers in Tucson – DUI, Tucson Lifestyles Magazine, 2013

Seminars, Lectures & CLE Taught:

  • Tear Whole Place Down:  Challenging Blood Evidence by Challenging the Lab Itself, NCDD 2014 Winter Conference, National College for DUI Defense, San Diego, California January 23, 2014
  • Blood Testing: Separating Science from Science Fiction (with Chester Flaxmayer), Stuart Kinard Memorial Advanced DWI Seminar, National College of DUI Defense/Texas Criminal Defense Lawyers Association, San Antonio, Texas, November 8, 2013
  • Blood Testing:  Separating Science from Science Fiction, 2013 Public Defenders' DUI Seminar, National College of DUI Defense/Georgia Public Defenders Standards Council, Atlanta, Georgia, October 17,2013
  • Creative Opening Statements: Getting to Not Guilty Right Out of the Gate, 2013 Public Defenders' DUI seminar, NCDD/Georgia Public Defenders' Standards Council, Atlanta, Georgia, October 17, 2013
  • Creative Opening Statements: Getting to Not Guilty Right Out of the Gate, 2013 Summer Session, National College of DUI Defense, Cambridge, Massachusetts, July 27, 2013
  • Daubert and the Scottsdale Crime Lab: Separating Science from Science Fiction (with Mark DuBiel, Lawrence Koplow and Clifford Girard), 2013 APDA Statewide Conference, Arizona Public Defenders Association, Tempe, Arizona, June 27, 2013
  • Daubert and the Scottsdale Crime Lab: Separating Science from Science Fiction (with Mark DuBiel, Lawrence Koplow and Clifford Girard), 26th Annual Aggressive Defense of the Accused Impaired Driver Seminar, Arizona Attorneys for Criminal Justice, Tucson, Arizona, May 3, 2013
  • Mock Trial (with Erin Gerstenzang, Evan Levow and Bruce Edge), 20th Annual Mastering Scientific Evidence in DUI/DWI Cases, National College for DUI Defense/Texas Criminal Defense Lawyers Association, New Orleans, Louisiana, March 21-22, 2013
  • Blood Test Cross-Examination Demonstration (with James Nesci), National College for DUI Defense, 2013 NCDD Winter Conference, Scottsdale, Arizona, January 18, 2013
  • "Dismantling the Blood Case," Arizona Attorneys for Criminal Justice, 25th Annual Aggressive Defense of the Accused Impaired Driver Seminar, May 5, 2012
  • "New Case Review; More Cases, More Changes," Arizona Attorneys for Criminal Justice, 25th Annual Aggressive Defense of the Accused Impaired Driver Seminar, May 5, 2012
  • Co-Chairman, Arizona Attorneys for Criminal Justice, 25th Annual Aggressive Defense of the Accused Impaired Driver Seminar, May 4-5, 2012
  • Mock Trial (with James Nesci, Virginia Landry and Allen Trapp), 19th Annual Mastering Scientific Evidence in DUI/DWI Cases, National College for DUI Defense/Texas Criminal Defense Lawyers Association, New Orleans, Louisiana, March 23-24, 2012
  • "Problem Chromatograms: Finding What Ethically Helps" (with James Nesci), 19th Annual Mastering Scientific Evidence in DWI/DUI Cases, National College for DUI Defense/Texas Criminal Defense Lawyers Association, New Orleans, Louisiana, March 22, 2012
  • "Top 10 Challenges to Blood Tests," TACDL 2011 DUI Conference, Tennessee Association of Criminal Defense Lawyers, Nashville, Tennessee, October 21, 2011
  • Breakout Session on Gas Chromatography, Winning at Every Level, National Association of Criminal Defense Lawyers/National College for DUI Defense, Las Vegas, Nevada, September 17, 2011 (with James Nesci)
  • "Understanding Gas Chromatography, Winning at Every Level," National Association of Criminal Defense Lawyers/National College for DUI Defense, Las Vegas, Nevada, September 16, 2011 (with James Nesci)
  • Breakout Sessions Co-Leader, Summer Session 2011, National College for DUI Defense Cambridge, Massachusetts, July 29, 2011 (with Doug Murphy)
  • Blood Metrology, 24th Annual Seminar on Aggressive Defense of the Accused Impaired Driver Arizona Attorneys for Criminal Justice, Tucson, Arizona, May 7, 2011 (with Chester Flaxmayer)
  • "Investigating & Preparing a Successful DUI Defense," 24th Annual Seminar on Aggressive Defense of the Accused Impaired Driver, Arizona Attorneys for Criminal Justice, Tucson, Arizona, May 7, 2011 (with Michael Bloom and Stephen Barnard)
  • "Judges Answer the Top 10 Questions of DUI Defense Attorneys," 24th Annual Seminar on Aggressive Defense of the Accused Impaired Driver, Arizona Attorneys for Criminal Justice, Tucson, Arizona, May 6, 2011 (Moderator, with Hon. Robert Doyle, Hon. Wendy Million and Hon. Paul Simon)
  • "True Blood? Identifying Issues in Blood Alcohol Testing and Communicating Those Issues to Jurors," Defense of Drinking Drivers Institute, Institute of Continuing Legal Education in Georgia, Atlanta, Georgia, December 3, 2010
  • "The Latest in Blood Forensics," DUI XXV, Sandra Day O’Connor College of Law Alumni Association, Phoenix, Arizona, November 19, 2010
  • "Blood Testing Laboratory Issues in DUI Cases, Whatever Happened to the Science in Forensic Science?", Wisconsin Association of Criminal Defense Lawyers, Wisconsin Dells, Wisconsin, October 9, 2010 (with Janine Arvizu)
  • Breakout Sessions Co-Leader, Summer Session 2010, National College for DUI Defense Cambridge, Massachusetts, July 28-29, 2010, (with George Stein)
  • "Advanced DUI Blood Issues," 8th Annual APDA Statewide Conference, Arizona Public Defender’s Association, Phoenix, Arizona, June 9, 2010
  • "Can They Do That?: What about Ethics"?, 23rd Annual Seminar on Aggressive Defense of the Accused Impaired Driver, Arizona Attorneys for Criminal Justice, Tucson, Arizona, May 8, 2010 (with Stephen Barnard and Michael Bloom)
  • "Voir Dire and Mini-Openings: Your Best Chance of Getting a Receptive Jury," 23rd Annual Seminar on Aggressive Defense of the Accused Impaired Driver, Tucson, Arizona, May 7, 2010
  • "Blood Testing - What Lawyers Need to Know About Forensic Gas Chromatography," 17th Annual Mastering Scientific Evidence in DWI/DUI Cases, National College for DUI Defense/Texas CriminalDefense Lawyers Association, New Orleans, Louisiana, April 8, 2010
  • Death Penalty Jury Selection Co-Leader, Pima County Public Defender’s Office, Tucson, Arizona, February 11-13, 2010 (with David Wymore, Richard Miller and Natman Schaye)
  • Breakout Sessions Co-Leader, Summer Session 2009, National College for DUI Defense, Cambridge, Massachusetts, July 15-16, 2009 (with Steve Jones)
  • "The Time is Now: Learn How to Use PowerPoint in the Courtroom," 7th Annual APDA Statewide Conference, Arizona Public Defender’s Association, Phoenix, Arizona, June 17, 2009
  • Jury Selection, DWI on Trial - The Big Apple IX, New York State Bar Association, New York City, New York, May 8, 2009
  • "Blood Alcohol Testing, Save Your Breath for Tunica," Tennessee Association of Criminal Defense Lawyers, Tunica, Mississippi, October 30, 2008
  • Lessons Learned from Recent Capital Trials, Death Penalty Seminar, Arizona Capital Representation Project, Phoenix, Arizona, October 17, 2008 (with Natman Schaye, Julie Hall and John Bailey)
  • Jury Selection Method Demonstration, Death Penalty Seminar, Arizona Capital Representation Project, Phoenix, Arizona, October 17, 2008 (with Natman Schaye and John Bailey)
  • "Voir Dire: A Capital Idea (Lessons Learned from Death)," Summer Session 2008, National College for DUI Defense, Cambridge, Massachusetts, July 19, 2008
  • Breakout Sessions Co-Leader, Summer Session 2008, National College for DUI Defense, Cambridge, Massachusetts, July 17-18, 2008 (with Tracey Wood)
  • "DUI: Challenging Blood Test Results," 6th Annual APDA Statewide Conference, Arizona Public Defender’s Association, Phoenix, Arizona, June 17, 2008 (with Chester Flaxmayer)
  • "When a DUI is in the Big Court: From Child Abuse to 2nd Degree Murder," 21st Annual Seminar on Aggressive Defense of the Accused Impaired Driver, Arizona Attorneys for Criminal Justice, Tucson, Arizona, May 3, 2008 (With Stephen Barnard, Michael Bloom and Steve Jones)
  • "Blood Tests: So Easy a Cave Man Can Do It," 21st Annual Seminar on Aggressive Defense of the Accused Impaired Driver, Arizona Attorneys for Criminal Justice, Tucson, Arizona, May 2, 2008 (With Chester Flaxmayer)
  • I Within 3 Hours of D, “I Know What You Did Last Legislature:” A DWI Seminar, New Mexico Criminal Defense Lawyers Association, Albuquerque, New Mexico, October 19, 2007
  • "Blood from A to Z (and Then Some)," DUI XXI Seminar, Arizona State University College of Law Alumni Association, Phoenix, Arizona, September 7, 2007 (with Michael Bloom)
  • Breakout Sessions Co-Leader, Summer Session 2007, National College for DUI Defense, Cambridge, Massachusetts, July 19-20, 2007 (with Gary Trichter).
  • "Getting Involved: How Public Defenders Can Make a Difference in the Justice System," 5th Annual APDA Statewide Conference, Arizona Public Defender’s Association, Phoenix, Arizona, June 20, 2007 (Panel Discussion with Chris DuPont, Daniella De la Torre, and Jeremy Mussman)
  • "Blood from A to Z (and Then Some)," 20th Annual Seminar on Aggressive Defense of the Accused Impaired Driver, Arizona Attorneys for Criminal Justice, Tucson, Arizona, May 19, 2007 (with Michael Bloom)
  • "Using Death Penalty Jury Selection in a DUI Case," Pima County Public Defender’s Office, Tucson, Arizona, March 2, 2007
  • FOIA Talk, Arizona Attorneys for Criminal Justice, Prescott, Arizona, January 15, 2007 (with Chris Dupont)
  • "Victim’s Rights: Ethical Considerations, Strategies in Handling DWI and DUI Cases in Arizona," Lorman Education Services, Tucson, Arizona, November 17, 2006
  • "Dismantling the Blood Test, Strategies in Handling DWI and DUI Cases in Arizona," Lorman Education Services, Tucson, Arizona, November 17, 2006
  • "Using Death Penalty Jury Selection in a DUI Case," Arizona Attorneys for Criminal Justice, Flagstaff, Arizona, August 19, 2006
  • Death Penalty Panel Discussion, 5th Annual APDA Statewide Conference, Arizona Public Defender’s Association, Phoenix, Arizona, June 22, 2006
  • "Recent TV Ads: Aimed at DUI Abatement or the Abatement of Right to Counsel?" DUI XX Seminar, Arizona State University College of Law Alumni Association, Phoenix, Arizona, February 3, 2006
  • "Working With Experts to Develop a Social History, Mitigation and a Defense," Mitigation and Mental Health Seminar, The Arizona Capital Representation Project and the Pima County Public Defender’s Office, Tucson, Arizona, October 21, 2005
  • "Using a Forensic Psychologist In the Mitigation Case: Views from a Trial Lawyer," Making the Case for Life VIII, National Association of Criminal Defense Lawyers, Oklahoma City, Oklahoma, October 1, 2005
  • "Defending a DNA Case," DNA Seminar, James E. Rogers College of Law, Tucson, Arizona, September 14, 2005
  • "Victim’s Rights, Ethical Issues for Civil Attorneys with Criminal Clients," Pima County Bar Association, Tucson, Arizona, August 31, 2005
  • Death Penalty Panel Discussion, 4th Annual APDA Statewide Conference, Arizona Public Defender’s Association, Phoenix, Arizona, June 24, 2005 (Panel Discussion)
  • "They Used to Call it Assault: The New Phlebotomists," 16th Annual Seminar on Aggressive Defense of the Accused Impaired Driver, Arizona Attorneys for Criminal Justice, Tucson, Arizona, May 9, 2003
  • Monitor Training, Monitor Training Program, State Bar of Arizona Member Assistance Program/Law Office Management Assistance Program, Phoenix, Arizona, November 9, 2001
  • "The Blood Case Primer: A Whole New Ball Game," 14th Annual Seminar on Aggressive Defense of the Accused Impaired Driver, Arizona Attorneys for Criminal Justice, Tucson, Arizona, April 28, 2001 (with Michael Bloom and Suzanne Crawford)
  • Monitor Training, Monitor Training Program, State Bar of Arizona Member Assistance Program/Law Office Management Assistance Program, Tucson, Arizona, March 30, 2001
  • "DNA Y2K: The New Generation of Tests, "Victory at Sea, Arizona Attorneys for Criminal Justice, Long Beach, California, September 9, 2000 (with Simon Ford)
  • "LOMAP Monitoring: Helping Lawyers Comply with Their Programs and Make Meaningful Changes in Their Practice," Monitor Training Program, State Bar of Arizona Member Assistance Program/Law Office Management Assistance Program, Phoenix, Arizona, April 21, 2000

Consult our attorney with extensive DUI trial experience

For representation by a dedicated DUI defense counsel, call Nesci & St. Louis, PLLC today at 520.777.0235 or contact us online to schedule your free initial consultation.