About Us - Attorney Bios

Deandra M. Grant

Managing Partner

Deandra M. Grant

Managing Partner

Attorney Deandra Grant

Save Deandra Grant’s Contact Information

Achievements & Recognition

Professional Organizations & Memberships

  • State Bar of Texas
  • DUI Defense Lawyers Association (Executive Director, President-Emeritus, Charter Member)
  • North Texas State Criminal Law Inn of Court – Founding Organizer
  • Texas Criminal Defense Lawyers Association (Board of Directors 2011-16)
  • Dallas Criminal Defense Lawyers Association (President 2022, President-elect 2021, Treasurer 2020, Board of Directors 2007-19)
  • Collin County Criminal Defense Lawyers Association
  • Dallas Bar Association
  • Denton County Criminal Defense Lawyers Association
  • National Women Trial Lawyers Association
  • Dallas Women Lawyers Association (Board of Directors 2021-2022)
  • NORML Legal Committee
  • American Academy of Forensic Sciences
  • American Chemical Society – Chemistry and the Law Division
  • American Association for the Advancement of Science
  • American Association for Clinical Chemistry
  • South Carolina Association of Criminal Defense Lawyers
  • Ohio Association of Criminal Defense Lawyers
  • Texas Independent Bar Association
  • Society of Toxicology (Associate Member)
  • International Association of Forensic Toxicology Consultants
  • National Association of Criminal Defense Lawyers
  • Litigation Counsel of America (Fellow)
  • Dallas Criminal Defense Bar (Founding Member)

Additional Work

  • Author of The Texas DWI Manual (2013-present)
  • Forensic Sobriety Assessment Certification
  • NHTSA Standardized Field Sobriety Testing course
  • NHTSA Standardized Field Sobriety Testing Instructor course
  • Drug Recognition Expert (DRE) course
  • Intoxilyzer 5000 Operator and Maintenance Technician course
  • Certificate, Forensic Chromatography: Theory and Practice
  • Certificate, Forensic Analysis of Solid Drugs
  • Certificate, Forensic Principles of DUID
  • ACS-CHAL Forensic Lawyer-Scientist designation
  • Faculty, Borkenstein Drug Course (2019 – present)

Latest Presentations:

  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) “Discovery in Blood Test Cases, “Pre-Analytical Errors”, “Themes & Cross in Blood Test Cases”, Chicago, IL, October 2025
  • Seminar: The Robert F. Borkenstein Course on the Effects of Drugs on Human Performance and Behavior (The Center for Forensic Science Research & Education) “Effective Courtroom Testimony: Police & Experts”, Philadelphia, PA, September 2025
  • Seminar: Forensic DUID Course (Axion Analytical Laboratory) “DUID Trial Considerations, Chicago, IL, September 2025
  • Seminar: Forensic Drug Analysis Course (Axion Analytical Laboratory) “Cross Examination of a Drug Analyst, “Discovery in a Drug Case”, Chicago, IL, July 2025 “Challenging Blood Evidence”, Dallas, TX, July 2025
  • Seminar: 51st Advanced Criminal Law Seminar (State Bar of Texas) “Discovery in Blood Test Cases, “Pre-Analytical Errors”, “Themes & Cross in Blood Test Cases”, Chicago, IL, June 2025
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) “If Only I Had Known…” & “DUID Trial Considerations, Dallas, TX, June 2025
  • Seminar: Dog Days of Summer Criminal Law Seminar (Deandra Grant Law) “If Only I Had Known…”, Columbus, OH, March 2025
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Discovery in Blood Test Cases, “Pre-Analytical Errors”, “Themes & Cross in Blood Test Cases”, Chicago, IL, October 2024
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) “DUID Trial Considerations, Chicago, IL, September 2024
  • Seminar: Forensic DUID Course (Axion Analytical Laboratory) “Effective Courtroom Testimony: Police & Experts”, Philadelphia, PA, September 2024
  • Seminar: The Robert F. Borkenstein Course on the Effects of Drugs on Human Performance and Behavior (The Center for Forensic Science Research & Education) “If Only I Had Known…”, Austin, TX, September 2024
  • Seminar: 2024 DUIDLA Fall Seminar (DUI Defense Lawyers Association) “Cross Examination of a Drug Analyst, “Discovery in a Drug Case”, Chicago, IL, August 2024
  • Seminar: Forensic Drug Analysis Course (Axion Analytical Laboratory) “Challenging Blood Evidence”, San Antonio, TX, July 2024
  • Seminar: 50th Advanced Criminal Law Seminar (State Bar of Texas) Enzymatic Serum Ethanol Analysis – ‘Hospital Blood’”, Pottsboro, TX, June 2024
  • Seminar: Dog Days of Summer Criminal Law Seminar (DNE Boost Legal Seminars) “Alcohol Calculations: Examining the New AAFS Guidelines”, Webinar, June 2024
  • Seminar: DUIDLA Quarterly Webinar “Discovery in Blood Test Cases, “Pre-Analytical Errors”, “Themes & Cross in Blood Test Cases”, Chicago, IL, June 2024
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) “An Introduction to Retrograde Extrapolation”, Webinar, May 2024
  • Seminar: DUIDLA Quarterly Webinar “Fantasia: Directing a Defense Expert” & “Finding Neverland: Retrograde Extrapolation Panel”, Orlando, FL, April 2024
  • Seminar: 2024 DUIDLA Spring Seminar (DUI Defense Lawyers Association) Enzymatic Serum Ethanol Analysis – ‘Hospital Blood’”, Columbus, OH, March 2024
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Blood Alcohol Analysis”, Gainesville, FL, November 2023
  • Seminar: Blood, Breath & Tears 2024 (Florida Association of Criminal Defense
  • Lawyers) “Blood Alcohol Analysis”, “DUI Mock Trial”, Gainesville, FL, October 2023
  • Seminar: Blood, Breath & Tears 2023: A Seminar for the DUI Practitioner (Florida Association of Criminal Defense Lawyers) “Discovery in Blood Test Cases, “Pre-Analytical Errors”, “Themes & Cross in Blood Test Cases”, Chicago, IL, October 2023
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) “Effective Courtroom Testimony: Police & Experts”, Madison, WI, October 2023
  • Seminar: The Robert F. Borkenstein Course on the Effects of Drugs on Human Performance and Behavior (The Center for Forensic Science Research & Education) “The Future of DWI Defense”, Atlanta, GA, September 2023
  • Seminar: 2023 DUIDLA Fall Seminar (DUI Defense Lawyers Association) “DUID Trial Considerations, Chicago, IL, Sept 2023
  • Seminar: Forensic DUID Course (Axion Analytical Laboratory) Traveling with Your Gun and the Pros & Cons of Open Carry”, Dallas, TX, September 2023
  • Seminar: Firearms CLE (State Bar of Texas) Retrograde Extrapolation”, Denton, TX, August 2023
  • Seminar: Monthly CLE (Denton County Criminal Defense Lawyers Association) “Cross Examination of a Drug Analyst, “Discovery in a Drug Case”, Chicago, IL, July 2023
  • Seminar: Forensic Drug Analysis Course (Axion Analytical Laboratory) Course Director & Faculty, Dallas, TX, June 2023
  • Seminar: NHTSA SFST Course 2023 (DUI Defense Lawyers Association) “Discovery in Blood Test Cases, “Pre-Analytical Errors”, “Themes & Cross in Blood Test Cases”, Chicago, IL, June 2023
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) “An Introduction to Retrograde Extrapolation”, Course Director, Zoom seminar, May 2023
  • Seminar: Quarterly Webinar (DUI Defense Lawyers Association) Team Innocent Voir Dire”, Columbus, OH, March 2023
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Drugged Driving: Current Research”, Course Director, Austin, TX, January 2023
  • Seminar: 10th Annual Lone Star DWI (Texas Criminal Defense Lawyers
  • Association) “Drugged Driving Cases: Trial Considerations”, Chicago, IL, December 2022
  • Seminar: Forensic HPLC Course (Axion Analytical Laboratory) “Drugged Driving Cases: Trial Considerations”, Columbia, SC, November 2022
  • Seminar: 2022 Reese I. Joye Memorial DUI Defense Seminar (South Carolina
  • Association of Criminal Defense Lawyers) “Drugged Driving Cases: Trial Considerations”, San Antonio, TX, November 2022
  • Seminar: 18th Annual Stu Kinard Advanced DWI Seminar (Texas Criminal Defense Lawyers Association) “Discovery in Blood Test Cases, “Pre-Analytical Errors”, “Themes & Cross in Blood Test Cases”, Chicago, IL, October 2022
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) “DUID Trial Considerations, Chicago, IL, Sept 2022
  • Seminar: Forensic DUID Course (Axion Analytical Laboratory) “Effective Courtroom Testimony: Police & Experts”, Philadelphia, PA, September 2022
  • Seminar: The Robert F. Borkenstein Course on the Effects of Drugs on Human Performance and Behavior (The Center for Forensic Science Research & Education) Team Innocent Voir Dire”, San Antonio, TX, August 2022
  • Seminar: Against All Odd (San Antonio Criminal Defense Lawyers Association) “Cross Examination of a Drug Analyst, “Discovery in a Drug Case”, Chicago, IL, July 2022
  • Seminar: Forensic Drug Analysis Course (Axion Analytical Laboratory) “Strategies for DWI Cases with Blood Evidence”, Dallas, TX, July 2022
  • Seminar: 48th Advanced Criminal Law Seminar (State Bar of Texas) Successful Courtroom Testimony: DUID Cases”, Durant, OK, June 2022
  • Seminar: Oklahoma DRE Course (Oklahoma State DRE Program) “Discovery in Blood Test Cases, “Pre-Analytical Errors”, Chicago, IL, June 2022
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) Not Good or Bad: Just Labs”, San Antonio, TX, June 2022
  • Seminar: 35th Annual Rusty Duncan Advanced Criminal Law Seminar (Texas Criminal Defense Lawyers Association) Training State Witnesses in DUID Cases”, Columbus, OH, March 2022
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Drugged Driving: Current Research”, Course Director, Austin, TX, January 2022
  • Seminar: 9th Annual Lone Star DWI (Texas Criminal Defense Lawyers Association) “Team Innocent Voir Dire”, Indianapolis, IN, December 2021
  • Seminar: Champions Trial Skills Workshop (Indiana Continuing Legal Education Forum) “Working Blood Magic in a Vampire World”, Columbia, SC, November 2021
  • Seminar: 2021 Reese I. Joye Memorial DUI Defense Seminar (South Carolina Association of Criminal Defense Lawyers) “Discovery in Blood Test Cases, “Pre-Analytical Errors”, Chicago, IL, October 2021
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) “SCRAM Devices: A Primer”, Fort Worth, Texas, October 2021
  • Seminar: 18th Annual Forensics Seminar (Texas Criminal Defense Lawyers Association) “DUID Trial Considerations, Chicago, IL, Sept 2021
  • Seminar: Forensic DUID Course (Axion Analytical Laboratory) “Dis is Da Bidness of Law”, Chicago, IL, September 2021
  • Seminar: 2021 DUIDLA Fall Seminar (DUI Defense Lawyers Association) “Successful Courtroom Testimony: Police & Experts”, Philadelphia, PA, September 2021
  • Seminar: The Robert F. Borkenstein Course on the Effects of Drugs on Human Performance and Behavior (The Center for Forensic Science Research & Education) “COVID-Implications on Your Law Practice and Trials”, Nashville, TN, August 2021
  • Seminar: First Annual Women’s Retreat (DUI Defense Lawyers Association) “Cross Examination of a Drug Analyst, Chicago, IL, July 2021
  • Seminar: Forensic Drug Analysis Course (Axion Analytical Laboratory) “Discovery in Blood Test Cases, “Pre-Analytical Errors”, Chicago, IL, June 2021
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) Impact of COVID on Jury Selection”, Columbus, OH, June 2021
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “COVID Implications for Breath Alcohol Testing”, Dallas, TX, May 2021
  • Seminar: DCDLA Monthly Meeting (Dallas Criminal Defense Lawyers Association) “COVID Implications for Breath Alcohol Testing”, Dallas, TX, May 2021
  • Seminar: 14th Annual DWI Defense Project (Texas Criminal Defense Lawyers Association) “Blinding Them with Science: Some Quick Tips on Trying Blood Test Cases”, Indianapolis, IN, March 2021
  • Seminar: Impaired Driving Defense 101 (Indiana Continuing Legal Education Forum) “COVID Implications for Breath Alcohol Testing”, Course Director, Austin, TX, January 2021
  • Seminar: 8th Annual Lone Star DWI (Texas Criminal Defense Lawyers
  • Association) “Auto-Brewery Syndrome: What Lawyers Should Know”, Harrisburg, PA, November 2020
  • Seminar: Monthly CLE Program (Pennsylvania Association of Criminal Defense Lawyers) “Blinding Them with Science: Blood and Breath Alcohol Cases”, San Antonio, TX, November 2020
  • Seminar: 16th Annual Stu Kinard Advanced DWI Seminar (Texas Criminal Defense Lawyers Association) “Trying Cases in the Age of COVID”, Zoom Webinar, October 2020
  • Seminar: Monthly Webinar Series (DUI Defense Lawyers Association) “Auto-Brewery Syndrome”, Austin, TX, September 2020
  • Seminar: 2020 DUIDLA Fall Seminar (DUI Defense Lawyers Association) “Blinding Them with Science: Some Quick Tips on Blood Test Cases”, Indianapolis, IN, August 2020
  • Seminar: Fundamentals of OVWI (Indiana Public Defender Counsel) “Mock Cross Examination: Blood Case Disconnect Defense”, Houston, TX, August 2020
  • Seminar: Top Gun DWI XVIII (Texas Criminal Defense Lawyers Association) “Defending Intoxication Manslaughter Cases”, Houston, TX, July 2020
  • Seminar: 46th Advanced Criminal Law Seminar (State Bar of Texas) “Drugged Driving: The Science”, Course Director, San Antonio, TX, June 2020
  • Seminar: 33rd Annual Rusty Duncan Advanced Criminal Law Course (Texas Criminal Defense Lawyers Association) Jury Selection”, Columbus, OH, March 2020
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense
  • Lawyers) “Drugged Driving: The Science”, Course Director, Austin, TX, January 2020
  • Seminar: 7th Annual Lone Star DWI (Texas Criminal Defense Lawyers Association) “DUID Trial Considerations, Chicago, IL, Sept 2019
  • Seminar: Forensic DUID Course (Axion Analytical Laboratory) “Successful Courtroom Testimony: Police & Experts”, Long Beach, CA, September 2019
  • Seminar: The Robert F. Borkenstein Course on the Effects of Drugs on Human Performance and Behavior (The Center for Forensic Science Research & Education) “Case Law Update on Challenging Blood Search Warrants: Martinez, Arellano & Wheeler”, Dallas, TX, August 2019
  • Seminar: DCDLA Monthly Meeting (Dallas Criminal Defense Lawyers Association) “Cross Examination of a Drug Analyst, Chicago, IL, July 2019
  • Seminar: Forensic Drug Analysis Course (Axion Analytical Laboratory) “Drugged Driving Cases: The Science”, Dallas, TX, July 2019
  • Seminar: 45th Advanced Criminal Law Seminar (State Bar of Texas) “Drugged Driving: Exposing the Faulty Science, “Winning Blood Test Cases”, Minneapolis, MN, June 2019
  • Seminar: MSJC 34th Annual DWI Seminar (Minnesota Society for Criminal Justice) “Discovery in Blood Test Cases, Chicago, IL, June 2019
  • Seminar: Forensic Chromatography Course (Axion Analytical Laboratory) “Drugged Driving: Exposing the Faulty Science, Nashville, TN, April 2019
  • Seminar: 2019 DUIDLA Spring Seminar (DUI Defense Lawyers Association) “Winning Blood Test Cases”, Ft. Worth, TX, March 2019
  • Seminar: Monthly Meeting (Mexican American Bar Association) Trial Skills Faculty, Columbus, OH, March 2019
  • Seminar: Trial Skills Workshop (DUI Defense Lawyers Association) Enzymatic Serum Ethanol Testing: Hospital Blood”, Columbus, OH, March 2019
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Drugged Driving: The Science”, Course Director, Key West, FL, Feb 2019
  • Seminar: 13th Annual Diving Into a DUI Case Seminar (Trial Skills University & DUI Defense Lawyers Association) “Drugged Driving: The Science”, Course Director, Austin, TX, January 2019
  • Seminar: 6th Annual Lone Star DWI (Texas Criminal Defense Lawyers Association) “Drugged Driving: Exposing the Faulty Science, Denton, TX, October 2018
  • Seminar: DCCDLA Monthly Meeting (Denton County Criminal Defense Lawyers Association) “Winning Blood Test Cases”, Tampa, FL, September 2018
  • Seminar: Blood, Breath & Tears XXV: A Seminar for the DUI Practitioner (Florida Association of Criminal Defense Lawyers) “Drugged Driving: Exposing the Faulty Science, Houston, TX, August 2018
  • Seminar: 16th Annual Top Gun DWI (Texas Criminal Defense Lawyers Association) “Enzymatic Serum Ethanol Testing: Anatomy of a Criminal Case”, Course Director, San Antonio, TX, July 2018
  • Seminar: Advanced Criminal Law Seminar (State Bar of Texas) “DUI Death/Serious Injury Cases”, Course Director, Arlington, TX, May 2018
  • Seminar: 11th Annual DWI Defense Project (Texas Criminal Defense Lawyers Association) “Discovery in DUI Blood Cases”, Indianapolis, IN, May 2018
  • Seminar: The Science of DUI Cases (Indiana Continuing Legal Education Forum) “Drugged Driving Cases”, Dallas, TX, April 2018
  • Seminar: DCDLA Monthly Meeting (Dallas Criminal Defense Lawyers Association) “Winning Blood Test Cases”, San Antonio, TX, April 2018
  • Seminar: 55th Annual Criminal Law Institute (San Antonio Bar Association & Texas Criminal Defense Lawyers Association) “Team Innocent Voir Dire”, Columbus, OH, March 2018
  • Seminar: Trial Skills Workshop (DUI Defense Lawyers Association) “DUI Death/Serious Injury Cases”, Columbus, OH, March 2018
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Drugged Driving Cases”, San Diego, CA, March 2018
  • Seminar: ABA 2018 Traffic Court Seminar (ABA Judicial Division National Conference of Specialized Court Judge Traffic Court Committee)  Course Director, Key West, FL, Feb 2018
  • Seminar: 12th Annual Diving Into a DUI Case Seminar (Trial Skills University & DUI Defense Lawyers Association) “DWI Drug Case Trial Strategies”, Course Director, Austin, TX, January 2018
  • Seminar: 5th Annual Lone Star DWI (Texas Criminal Defense Lawyers Association) “Team Innocent Voir Dire”, San Antonio, TX, September 2017
  • Seminar: 13th Annual Stu Kinard Memorial Advanced DWI (Texas Criminal Defense Lawyers Association) “Obtaining and Reading Lab Discovery”, Grapevine, TX, May 2017
  • Seminar: 10th Annual DWI Defense Project (Texas Criminal Defense Lawyers Association) “Team Innocent Voir Dire”, Austin, TX, April 2017
  • Seminar: 2017 Spring Seminar (DUI Defense Lawyers Association) “Team Innocent Voir Dire”, Columbus, OH, March 2017
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers “Uncovering Lab Deception: A Case Study”, Course Director, Key West, FL, Feb 2017
  • Seminar: 11th Annual Diving Into a DUI Case Seminar (Trial Skills University & Meadows Law Firm) “Key Cross Examination Areas in Blood Test Cases” and “Uncovering Lab Deception: A Case Study”, Course Director, Austin, TX, Jan. 2017
  • Seminar: 4th Annual Lone Star DWI (Texas Criminal Defense Lawyers Association) “The ABC’s of Blood Alcohol Analysis”, Myrtle Beach, SC, Sept. 2016
  • Seminar: 3rd Annual DWI & DUI Advocacy Seminar (North Carolina Advocates for Justice) “Oral Fluid Drug Testing” and “Reading Lab Discovery”, Course Director, Austin, TX, July 2016
  • Seminar: 3rd Annual Lone Star DWI (Texas Criminal Defense Lawyers Association) “Enzymatic Serum Ethanol Testing: Anatomy of a Criminal Case”, Austin, TX, June 2016
  • Seminar: Austin Criminal Defense Lawyers Association Meeting “Oral Fluid Drug Testing”, Course Director, Dallas, TX, July 2016
  • Seminar: Advanced Criminal Law Seminar (State Bar of Texas) “Intoxilyzer 5000 vs 8000 vs 9000”, Course Director, Arlington, TX, May 2016
  • Seminar: 9th Annual DWI Defense Project (Texas Criminal Defense Lawyers Association) “Deconstructing the State’s ‘Expert’”, Key West, FL, Feb 2016
  • Seminar: 10th Annual Diving Into a DUI Case Seminar (Trial Skills University & Meadows Law Firm) “Blood Alcohol Testing 101”, Huntsville, TX, January 2016
  • Seminar: Walker County Bar Association Meeting “Intoxilyzer 5000 vs 8000 vs 9000”, Lubbock, TX, January 2016
  • Seminar: 35th Annual Prairie Dog Advanced Criminal Law Seminar (Lubbock Criminal Defense Lawyers Association) “Intoxilyzer 5000 vs 8000 vs 9000”, Lewisville, TX, December 2015
  • Seminar: 8th Annual Jolly Roger Hal Jackson Memorial Criminal Law Seminar (Texas Criminal Defense Lawyers Association) “Enzymatic Serum Ethanol Testing: Anatomy of a Criminal Case”, Little Rock, AR, October, 2015
  • Seminar: DWI Institute: My Case is a Wreck (Pulaski County Bar Association) “Cross Examining the State’s Blood Expert”, Course Director, Chicago, IL, July 2015
  • Seminar: 2015 Summer Seminar (DUI Defense Lawyers Association) “Deconstructing the State’s Blood Expert” & “Intoxilyzer 5000 vs 8000 vs 9000”,
  • Course Director, Austin, TX, July 2015
  • Seminar: 2nd Annual Lone Star DWI (Texas Criminal Defense Lawyers
  • Association) “Cross Examination of the State’s Blood Expert”, Course Director, Arlington, TX, May 2015
  • Seminar: 8th Annual DWI Defense Project (Texas Criminal Defense Lawyers Association) “Forensic Blood Testing 101”, San Antonio, TX, April 2015
  • Seminar: 52nd Annual Criminal Law Institute (San Antonio Bar Association & Texas Criminal Defense Lawyers Association) “Common Defenses in Breath Testing Cases”, Columbus, OH, March 2015
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Enzymatic Serum Ethanol Testing: Anatomy of a Criminal Case”, Key West, FL, Feb 2015
  • Seminar: 9th Annual Diving Into a DUI Case Seminar (Trial Skills University & Meadows Law Firm) Course Director, Santa Monica, CA, Jan 2015
  • Seminar: 2015 Winter Seminar (DUI Defense Lawyers Association) “Enzymatic Serum Ethanol Testing and Its Use As Forensic Evidence in a Criminal Case”, Lewisville, Texas, Dec 2014
  • Seminar: 6th Annual Jolly Roger Hal Jackson Memorial Criminal Law Seminar (Texas Criminal Defense Lawyers Association) “Blood Testing for the DUI Cases”, Chattanooga, Tennessee, Oct 2014
  • Seminar: DUI Defense Seminar (Tennessee Association of Criminal Defense
  • Lawyers) “Lab Errors”, Dallas, Texas, Sept 2014
  • Seminar: Monthly Luncheon CLE (Dallas Bar Association) “Lab Errors”, Course Director, Houston, Texas, July 2014
  • Seminar: Advanced Criminal Law Seminar (State Bar of Texas) “DWI Blood 101”, Course Director, Austin, Texas, July 2014
  • Seminar: 1st Annual Lone Star DWI (Texas Criminal Defense Lawyers Association) “Blinding Them with Science: DWI Blood Evidence”, Course Director, Arlington, Texas, May 2014
  • Seminar: 7th Annual DWI Defense Project – DWI: The Future (Texas Criminal Defense Lawyers Association) “Blinding Them with Science: DWI Blood Evidence”, Salt Lake City, UT, April 2014
  • Seminar: Advanced DUI Seminar (Utah Association of Criminal Defense
  • Lawyers) “Enzymatic Serum Ethanol Testing and Its Use As Forensic Evidence in a Criminal Case” – Oral Presentation of Abstract, Dallas, TX, March 2014
  • Seminar: 247th American Chemical Society National Meeting & Exposition “Team Innocent”, Columbus, OH, March 2014
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Blinding Them with Science: DWI Blood Evidence”, Key West, FL, February 2014
  • Seminar: 8th Annual Diving Into a DUI Case Seminar (Lyons Legal Seminars) “Understanding Blood Alcohol Testing,” Ft. Worth, Texas, January 2014
  • Seminar: Tarrant County Criminal Defense Lawyers Association CLE (Tarrant County Criminal Defense Lawyers Association) “Blinding Them with Science: DWI Defense”, Lubbock, TX, January 2014
  • Seminar: 34th Annual LCDLA Prairie Dog Lawyers Advanced Criminal Law Seminar (Texas Criminal Defense Lawyers Association) “Understanding Blood Alcohol Testing”, Denton, TX, December 2013
  • Seminar: 6th Annual Jolly Roger Hal Jackson Memorial Criminal Law Seminar (Texas Criminal Defense Lawyers Association) Course Director & Seminar Faculty, Denver, CO, October 2013
  • Seminar: DUI Drug Cases & DRE: Mastering the Science & Trial Skills (Int’l Legal & Forensic Science Services) Course Director & Seminar Faculty, Lubbock, TX, October 2013
  • Seminar: 1-Day Trial Skills: Defending a DWI with Breath/Blood Evidence (International Legal & Forensic Science Services, Inc.) “Prepping and Trying a Blood Draw DWI Case”, McKinney, TX, September 2013
  • Seminar: 3CDLA DWI Nuts ‘n Bolts Seminar (Collin County Criminal Defense Lawyers Association) “Team Innocent”, Dallas, TX, August 2013
  • Seminar: DCDLA Monthly CLE (Dallas Criminal Defense Lawyers Association) “McCarthy Cross”, Course Director, Dallas, TX, July 2013
  • Seminar: 1-Day Trial Skills: Defending a DWI with Breath/Blood Evidence (International Legal & Forensic Science Services, Inc.) “Trial Skills for DWI Blood Cases”, Forney, TX, July 2013
  • Seminar: KCCDLA Monthly CLE (Kaufman County Criminal Defense Lawyers Association) “DWI Case Law Update: Blood Evidence”, Course Director, Dallas, TX, July 2013
  • Seminar: Advanced Criminal Law Course DWI Track (State Bar of Texas) “Blood & McNeely: A Status Update”, Ft. Worth, TX, May 2013
  • Seminar: TCCDLA Monthly CLE (Tarrant County Criminal Defense Lawyers Association) “Working Blood Magic in a Vampire World”, Course Director, Arlington, TX May 2013
  • Seminar: 6th Annual DWI Defense Project (Texas Criminal Defense Lawyers Association) “Mission Impossible: Discovery in DWI Blood Test Cases” & “Working Blood Magic in a Vampire World”, Columbus, OH, March 2013
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Team Innocent”, Columbus, OH, March 2013
  • Seminar: Annual Trial Skills Workshop (Ohio Association of Criminal Defense Lawyers – Faculty) “Cross Examination in a Criminal Case”, Course Director, Miami, FL, February 2013
  • Seminar: Trial Skills Workshop (International Legal & Forensic Science Services, Inc.) “Working Blood Magic in a Vampire World”, Key West, FL, February 2013
  • Seminar: 7th Annual Diving Into a DUI Case Seminar (Lyons Legal Seminars) “DWI Basics for the Non-Criminal Law Specialist”, Dallas, TX, December 2012
  • Seminar: DWI Panel (Dallas Bar Association) “DWI Discovery &Trial Tactics for Blood Test Cases”, McKinney, TX, December 2012
  • Seminar: Monthly Meeting (Collin County Criminal Defense Lawyers Association) “Teaching Blood Alcohol Testing to the Wal-Mart Shopper”, McKinney, TX, November 2012
  • Seminar: Trying Blood Cases in Collin County (Collin County Criminal Defense Lawyers Association) “Teaching Blood Alcohol Testing to the Wal-Mart Shopper”, Sugarland, TX, November 2012
  • Seminar: Gideon’s Trumpet (Texas Criminal Defense Lawyers Association) “DWI Blood Cases: A Primer” & “Teaching Blood Alcohol Testing to the Wal- Mart Shopper”, Albuquerque, NM, November 2012
  • Seminar: Annual DUI Seminar (New Mexico Association of Criminal Defense Lawyers) “Teaching Blood Alcohol Testing to the Wal-Mart Shopper”, Tunica, MS, October 2012
  • Seminar: TACDL Annual DUI Seminar (Tennessee Association of Criminal Defense Lawyers) Course Director & Faculty, Dallas, TX, September 2012
  • Seminar: Intoxilyzer 5000 Boot Camp (International Legal & Forensic Science Services, Inc.) “DWI Blood Cases: A Primer”, Austin, TX, September 2012
  • Seminar: Monthly CLE (Austin Criminal Defense Lawyers Association) “Highway Through the Danger Zone: Cross Examination of the Arresting Officer”, Austin, TX, August 2012
  • Seminar: Top Gun DWI (Texas Criminal Defense Lawyers Association) Instructor & Course Director, Dallas, TX, August 2012
  • Seminar: NHTSA SFST Practitioner Course (Platt & Associates) “Defending a DWI Blood Test Case”, Course Director, San Antonio, TX, July 2012
  • Seminar: Advanced Criminal Law Seminar DWI Track (State Bar of Texas) “Building the Ultimate DUI Trial Notebook”, Monterrey, CA, June 2012
  • Seminar: 4th Annual DUI Defense Practice Institute (California Public Defenders Association) “DWI Blood Cases: A Primer”, Tunica, MS, June 2012
  • Seminar: Betting on Justice XII (Arkansas Association of Criminal Defense Lawyers) “Battling Blood: Qualified Person? Sanitary Place?”, Dallas, TX, June 2012
  • Seminar: Monthly CLE (Dallas Criminal Defense Lawyers Association) “Battling Blood: Qualified Person? Sanitary Place?”, Course Director, Arlington, TX, May 2012
  • Seminar: 5th Annual DWI Defense Project (Texas Criminal Defense Lawyers Association) Seminar Faculty, Columbus, OH, March 2012
  • Seminar: First Annual Trial Skills Workshop (Ohio Association of Criminal Defense Lawyers) “Challenging Breath Tests”, Columbus, OH, March 2012
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Discovery in DWI Blood Test Cases”, Austin, TX, December 2011
  • Seminar: DWI & Gas Chromatography (Texas Criminal Defense Lawyers Association) “Discovery in DWI Blood Test Cases”, San Antonio, TX, September 2011
  • Seminar: No Means No – Defending the No Refusal Case (Texas Criminal Defense Lawyers Association & San Antonio Criminal Defense Lawyers Association) “Mock Cross Examination of the State’s Blood Expert”, Houston, TX, August 2011
  • Seminar: Top Gun DWI – Blood, Breath & Beyond (Texas Criminal Defense Lawyers Association) “Blood Suppression After the Robinson Case”, Dallas, TX, August 2011
  • Seminar: Monthly Meeting (Dallas Criminal Defense Lawyers Association) “DWI Case Law Update”, San Antonio, TX, June 2011
  • Seminar: State Bar of Texas Annual Meeting “The Intoxilyzer 5000 From the Defense Perspective”, Dallas, TX, May 2011
  • Seminar: DWI Technology Conference (Texas Center for the Judiciary) “DWI Blood Cases: Discovery, Science & Strategy”, Arlington, TX, May 2011
  • Seminar: 4th Annual DWI Defense Project – What You Must Know to Win (Texas Criminal Defense Lawyers Association) “Discovery in DWI Blood Test Cases”, New Orleans, LA, April 2011
  • Seminar: Mastering Scientific Evidence in DWI Cases (National College for DUI Defense/Texas Criminal Defense Lawyers Association) “Hospital Blood in DWI Accident Cases” & “How to Build a House of Doubt at Trial”, Columbus, OH, March 2011
  • Seminar: Advanced DUI Seminar (Ohio Association of Criminal Defense Lawyers) “Defending the DWI Blood Test Case”, McKinney, TX, April 2010
  • Seminar: Monthly CLE (Collin County Criminal Defense Lawyers Association) “DWI For the Non-Criminal Specialist”, Ft. Worth, TX, June 2010
  • Seminar: State Bar of Texas Annual Meeting “DWI Trial Tactics”, Nationwide Phone CLE, July 2010
  • Seminar: DWI Seminar (American Association for Justice) “Blood Testing in DWI Cases”, Dallas TX, March 2009
  • Seminar: Advanced DWI Seminar (Dallas Criminal Defense Lawyers Association) “Blood Testing in DWI Cases”, Dallas TX, March 2009
  • Seminar: 2nd Annual DWI Defense Project (Texas Criminal Defense Lawyers Association) “Blood Cases: Science, Strategy & Discovery”, Dallas, TX, May 2009
  • Seminar: Defense Trial Tactics to Win a DWI Breath Test Case “DWI Blood Case Discovery”, Dallas, TX, July 2009

Meet Deandra Grant

Deandra Grant was born in Denton but grew up in Plano and is a proud graduate of Plano Senior High School. A native Texan, her family has lived for generations in and around Gainesville, Texas.

Deandra’s hard-nosed work ethic began at an early age with a variety of teenage jobs: social director at a teen nightclub, clerk at a dress shop and owner/manager of a New Orleans-style sno-cone stand (Mr Sno Ball!), to name a few.

After high school she attended Trinity University in San Antonio then came back home to Dallas for law school at SMU. Deandra has been married to Eric Clendenin for over 20 years and they have two children – Keegan and Rowan.

When not practicing law she is very involved with dog rescue and serves as Vice President of Living the Doxie Dream Rescue & Sanctuary in Royse City. At home she and Eric have 5 rescue dachshunds and you can follow their adventures on their Instagram page @5WienerPack.

Deandra is a huge Van Halen fan (DLR – not Hagar), studies medieval European history as a hobby and loves to travel.

Lawyer Stuff

Deandra has been included in the list of Super Lawyers since 2011. Super Lawyers® is an attorney rating service that is nationally recognized throughout the legal community. After performing exhaustive and rigorous research by an independent research team, they announce their list of highly capable, trustworthy, and competent attorneys in Super Lawyers® Magazine and online. The list represents no more than 5% of the attorneys in Texas.

Deandra is AV® Preeminent ™ Rated by Martindale-Hubbell®, which is the highest rating an attorney can achieve. She was given the AV® Rating for her outstanding professional achievements in the field of DWI law and her contributions to the legal community. She’s also been rated 10.0 by both AVVO and Justia.

Deandra began work on The Texas DWI Manual in 2011 for James Publishing. She calls it her “labor of love”. The first edition was released in 2013. It is updated annually and is considered a “must have” for attorneys defending DWI cases in Texas.

Experience

Deandra graduated in 1990 from Trinity University in San Antonio with a B.S. in Business Administration. She earned her law degree from the SMU School of Law and was licensed by the State Bar of Texas in 1993. Having spent her last year of law school as an intern with the Dallas County District Attorney’s Office, she began work there as an assistant district attorney in January 1994.

Deandra’s tenure as a prosecutor focused on DWI prosecution. In 1995, she founded her own firm and began defending citizens accused of DWI and other crimes. Deandra developed a reputation for winning “unwinnable” DWI cases which continues to this day. Her extensive DWI trial experience led to teaching trial skills to attorneys around the country at legal seminars. She has practiced criminal defense for over 30 years and represents Texans charged with criminal offenses, including DWI, violent felonies, and sex crimes. As a former prosecutor, she knows firsthand how to counter the prosecutor’s evidence and strategy.

Operator and Testing Experience

Deandra has spent hundreds of hours in training courses and programs related to DWI defense. She has participated in numerous ”dosing” experiments in which people are given specific amounts of alcohol over certain time periods and then tested to see the effect of the alcohol on their mental and physical capabilities. She attended and successfully completed the operator certification course for the Intoxilyzer 5000 in Florida in 2004. This was the breath-test machine used in Texas prior to the purchase of the Intoxilyzer 9000. She learned how to operate the machine and the science behind it. She has also participated in experiments related to the inaccuracy of the machine. 

Deandra has completed both the student course (2008) and the instructor course (2009) on the administration of standardized field sobriety testing (SFST’s), the same National Highway Traffic Safety Administration training course that teaches police officers nationwide how to identify drunk drivers during traffic stops. She now serves as an instructor of the SFST practitioner course to share the knowledge with other attorneys. In 2008, she completed coursework in Atlanta, Georgia, on DWI forensic blood and urine testing. 

In 2011, she began training at Axion Labs in Chicago. The courses include Forensic Chromatography, Forensic Drug Analysis and Forensic Driving Under the Influence of Drugs. She completed the coursework, passed the final exam in 2015 and was awarded the American Chemical Society Forensic Lawyer-Scientist Designation. In 2018 Deandra joined Axion Labs as an assistant chromatography instructor. She spends 5 weeks each year in Chicago at the lab. 

In 2014 Deandra “went back to school”. She completed a Graduate Certificate in Forensic Toxicology from the University of Florida’s College of Veterinary Medicine and a Master’s Degree in Pharmaceutical Science – Concentration in Forensic Science from the University of Florida’s College of Pharmacy in 2016.  

Deandra is a national speaker and teacher on topics including trial skills, jury selection, cross examination, field sobriety tests, drugged driving and forensic breath and blood alcohol testing. Since 2019 she’s been honored to serve on the faculty of the Robert F. Borkenstein Course on the Effects of Drugs on Human Performance and Behavior.  

For her entire Curriculum Vitae (‘Resume’), click here.

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Deandra Grant - Best Lawyers 2026

 

North Texas Sate Criminal Law Inn of Court

Education

Graduate Certificate in Forensic Toxicology

University of Florida, College of Veterinary Medicine

Gainesville, FL

Masters in Pharmaceutical Science – Concentration in Forensic Science

University of Florida, College of Pharmacy

Gainesville, FL

Juris Doctorate

SMU School of Law

Dallas, TX

Bachelor of Science in Business Administration/Finance

Trinity University

San Antonio, TX

Plano Senior High School

High School

Plano, TX

 

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