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Marcos Garza - Knoxville, TN

550 West Main StreetSuite 340 Knoxville, TN 37902- 2515

Updated: 04/07/2023

Knoxville DUI Defense Lawyer


MARCOS M. GARZA attended Vanderbilt University where he received a Bachelor of Science in Psychology with a double-major in Human & Organizational Development in 1996. In 1998, Mr. Garza received a Master of Science degree in Social Work (MSSW) from the University of Tennessee College of Social Work in Nashville, Tennessee. Mr. Garza received his Doctor of Jurisprudence form the University of Tennessee College of Law in 2001...

About Marcos Garza

Practice Areas

  • DUI Defense
  • Criminal Defense
  • Personal Injury

Current Employment Position(s)

  • Attorney at Law


Bar Admissions

  • Tennessee, 2001
  • U.S. District Court Eastern District of Tennessee, 2004
  • U.S. Court of Appeals for the Armed Forces, 2003
  • U.S. Court of Appeals 6th Circuit, 2006

Specialties and Certifications

  • Standardized Field Sobriety Test Training Certificate, LaPier & Associates

Other Affiliations

  • Tennessee Bar Association (Member)
  • Knoxville Bar Association (Member)
  • Sevier County Bar Association (Member)
  • Tennessee Association for Justice (Board Member)
  • National Association of Criminal Defense Lawyers (Life Member)
  • American Association for Justice (Board Member, NLD)


  • University of Tennessee College of Law, Knoxville, Tennessee, 2001
  • University of Tennessee College, 1998
    Master of Science
    Major: Social Work
  • Vanderbilt University, 1996
    Bachelor of Science
    Major: Psychology
    Major: Human & Organizational Development
  • National Criminal Defense College (NCDC) in Macon

Past Positions

  • United States Marine Corps, Captain - Judge Advocate, 1999 - 2005
  • Scientist, American Chemistry Society, Forensic Lawyer
  • Solid Drug Dose Testing, Axion Analytical Laboratories, Inc., Forensic Chromatography
  • Standardized Field Sobriety Test Instructor, Impaired Driving Specialists, LLC

Classes and Seminars

  • Self-Defense, Defense of Others, Escalation of Force, & Right to Counsel Issues, 2018
  • U.S. Law Shield (Tennessee & Kentucky), 2017, 2018
  • Trial Techniques and Issues Regarding Phase Two and Other Defenses, 2017
  • Tennessee Association of Criminal Defense Lawyers Annual DUI Seminar, 2017
  • Issues of Science McMinn County Bar Association, 2017
  • How to Win Your Trial at Preliminary Hearing Tennessee Association of Criminal Defense Lawyers Annual DUI Seminar, 2016
  • Implied Consent and other DUI Defense Issues TACDL Annual DUI Defense Conference, 2014
  • The CSI Effect: All the bloody details about Blood Testing, Breath Testing & Field Sobriety Testing Smoky Mountain Paralegal Association Annual Seminar, 2014
  • Preparing the DUI Case Knox County Public Defenders Office Training, 2014
  • Drug Recognition Expert Cross Examination Attacks DUI Seminar – Cobb County Bar Association, 2014
  • 20 Ways to Win a DUI Case TACDL’s 6th Annual DUI Seminar & Training, 2013
  • Preliminary Hearings TACDL General Sessions Court Training, 2013
  • Debunking the Drug Recognition Expert Ohio Assoc. of Criminal Defense Lawyers Advanced DUI Conference, 2013
  • 20 Trial Tips for DWI Winning Arkansas Association of Criminal Defense Lawyers Annual Seminar, 2013
  • Drug Recognition Defense 2013 DUI Conference Breckenridge, CO, 2013
  • Demystifying the Drug Recognition Evaluator TACDL’S DUI 2012 Seminar & Training, 2012
  • Drugged Driving TACDL’s 2011 DUI Training, 2011
  • NHTSA’s Standardized Field Sobriety Tests Standardized Field Sobriety Test Course, 2010
  • DUI/DWI Strategies in Defending DWI and DUI Cases, 2009
  • Planning your legal profession Planning your future as a legal professional, 2009


Other Sources of Feedback About Marcos Garza

Included on the 2023 Mid-South list

Past Lists

  • 2022 Mid-South Super Lawyers list
  • 2021 Mid-South Super Lawyers list
  • 2020 Mid-South Super Lawyers list
  • 2019 Mid-South Super Lawyers list
  • 2018 Mid-South Super Lawyers list
  • 2017 Mid-South Super Lawyers list
  • 2014 Mid-South Super Lawyers list
  • 2013 Mid-South Super Lawyers list
  • 2012 Mid-South Super Lawyers list
  • 2011 Mid-South Super Lawyers list
  • 2010 Mid-South Super Lawyers list

View the profile for Marcos Garza on Super Lawyers


  • Top 100 Trial Lawyers, National Trial Lawyers Association, 2019 - Present
  • Top-Rated DUI/DWI Attorney, Super Lawyers, 2017 - 2019
  • AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell, 2012 - 2019
  • Best Car Accident Attorney in Knoxville,, 2018 - 2019
  • Best DUI Lawyer in Knoxville,, 2018 - Present
  • Elite Lawyer of the South, 2017 - Present
  • Knoxville’s Top Lawyers, CityView Magazine, 2015 - 2016
  • 14 Best Criminal Defense Lawyers, Newsweek Magazine, 2014 - Present
  • Rising Star Mid-South, Super Lawyers, 2010 - 2014
  • Legal Leaders—Tennessee’s Top Rated Lawyers, Martindale-Hubbell
  • Leading Criminal Defense Attorneys, Newsweek Magazine, 2013 - Present
  • Top 40 Under 40, National Trial Lawyers Association, 2012 - Present
  • Outstanding Lawyers, Newsweek Magazine, 2011 - Present
  • Featured Tennessee Legal Profiles, Forbes Magazine, 2011 - Present
  • Navy & Marine Corps Achievement Medal, United States Marine Corps, 2004 - Present
  • Global War on Terrorism Service Medal, United States Marine Corps, 2004 - Present
  • National Defense Service Medal, United States Marine Corps, 2003 - Present
  • Top 100 Trial Lawyers, National Trial Lawyers Association, 2015 - Present
  • Top 100 Trial Lawyers, National Trial Lawyers Association, 2014 - 2015
  • Knoxville’s Top Lawyers, CityView Magazine, 2012 - 2013

Video & Photo


Office Information


550 West Main StreetSuite 340 Knoxville, TN 37902- 2515


  • (865) 474-9397

Accepts Credit Cards




  • Pharmacology/Toxicology Principles—DUI-D & Drug Cases Scientific Law Forums, Inc.

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(865) 474-9397
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550 West Main StreetSuite 340 Knoxville, TN 37902- 2515

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