Joseph P. St Louis
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Joseph P. St Louis

216 N. Main Avenue
Tucson, AZ 85701

Phone: 520-622-1222

Website: azdefense.com

Regent Sustaining Member Board Certified Faculty

About Joseph P. St Louis

As a result of attending a number of court proceedings for friends and relatives (both accused of crimes and victims of crimes) as a teenager, Joseph P. St. Louis realized that he wanted to practice law, and specifically that he wanted to defend those accused of committing crimes. From that time on, he has been a passionate advocate for his clients, never having had a desire to prosecute or to practice other areas of law. Now having spent over 30 years practicing law, Mr. St. Louis is a Partner in the Law Firm of Nesci & St. Louis, P.L.L.C.. Mr. St. Louis has been recognized for his expertise in handling a variety of criminal defense cases, including major felony cases in both State and Federal courts, as well as DUI defense, DUI homicides, drug offenses, sexual offenses, violent crimes, and murder cases, including death penalty cases. In 2014, Mr. St. Louis became one of fifteen members of the Board of Regents, charged with overseeing the National College for DUI Defense, the premier national DUI defense organization, with over 1,600 members. Mr. St. Louis has been chosen as one of the best DUI lawyers in Tucson by Tucson Lifestyles magazine. He has been chosen as one of the best attorneys in Arizona by Superlawyers magazine and AZ magazine every year since 2009. Mr. St. Louis is listed in the Best Lawyers in America, and has the highest rating possible given by Martindale-Hubbell, an AV-Preeminent rating. Nesci & St. Louis has been recognized as one of the top law firms in the Country by U.S. News & World Report every year since 2011. Mr. St. Louis is Certified by the Arizona State Bar as a Specialist in Criminal Law (June 2000 to the present). He is also Certified as a Specialist in DUI Defense by the National College for DUI Defense, recognized by the American Bar Association (July 2012 to the present). Mr. St. Louis is the only lawyer in Arizona who has been awarded both of these certifications. Only approximately five percent of attorneys currently practicing are certified as specialists in any area of the law. Mr. St. Louis is a sought-after 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, Colorado, Florida, Georgia, Illinois, Louisiana, Massachusetts, Mississippi, New Mexico, New York, Nevada, Ohio, Oklahoma, Tennessee, Texas and Wisconsin. Mr. St. Louis is a graduate of the National Highway Traffic Administration’s Student Course on Standardized Field Sobriety Testing, the National Highway Traffic Administration’s Instructor Course on Standardized Field Sobriety Testing, and the American Chemical Society’s Forensic Chromatography Course. 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 2006, he also served as the president of Arizona Attorneys for Criminal Justice.


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