Knowledge Vault Blog

The Knowledge Vault Blog

Forensic Science. Criminal Defense Strategy. The Law Behind the Law.

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Welcome to the Knowledge Vault Blog — where the attorneys, scientists, and forensic experts at Deandra Grant Law share what we know. This is not a typical law firm blog. It is a research library built by practitioners who teach forensic science courses, grade certification exams, and testify as experts in courtrooms across Texas.

Our Managing Partner, Deandra Grant, holds a Master’s Degree in Pharmaceutical Science, teaches the ACS-CHAL Forensic Lawyer-Scientist courses at Axion Analytical Labs, serves on the faculty of the Borkenstein Drug Course at Indiana University, and chairs the DUI Defense Lawyers Association’s national Board Certification program. She is a member of the American Academy of Forensic Sciences, the American Chemical Society, the Society of Toxicology, and the International Association of Forensic Science Consultants. Partner Douglas Huff brings ACS-CHAL credentials and Garrett Discovery digital forensics training. Federal Defense Attorney James Lee Bright contributes decades of experience in federal criminal practice.

Inside the Knowledge Vault you will find:

Hot Takes – The latest on high profile trials, changes to the law, rulings by the Supreme Court and forensic science news.

Forensic Science & DWI Defense — Deep analyses of blood and breath testing science, GC-FID instrument calibration, partition ratio variability, in vitro fermentation, retrograde extrapolation, and the pharmacokinetics of drug impairment. Written by attorneys who don’t just challenge the science — they teach it.

Field Sobriety Test Analysis — The history, validation research, and scientific limitations of the NHTSA Standardized Field Sobriety Tests, written by a certified SFST Instructor who was the first attorney in Texas to pass the Forensic Sobriety Assessment Certification exam.

Federal Criminal Defense — Guides to federal conspiracy, sentencing guidelines, proffer sessions, grand jury investigations, asset forfeiture, and the critical differences between state and federal prosecution. Written by attorneys who practice in federal courts across Texas.

Digital Forensics & Electronic Evidence — How cell phone location data, social media records, body cameras, call detail records, and computer forensics affect criminal cases — and how to challenge them.

Sex Crime Defense — Outcry witnesses, SANE exams, DNA evidence challenges, false accusations, registry implications, and defense strategies for the most serious allegations.

Emerging Science & Policy — Roadside cannabis testing technology, marijuana rescheduling and federal sentencing, Canadian travel after DWI, and the evolving intersection of science, law, and public policy.

Texas Criminal Courts & Local Practice — County-by-county courts guides, DA office profiles, courthouse walkthroughs, and city-specific enforcement patterns across Dallas, Collin, Denton, Tarrant, Rockwall, and McLennan counties.

Every article in the Knowledge Vault is written or reviewed by the attorneys at Deandra Grant Law.

We don’t publish filler. We publish the analysis we wish existed when we were building our own expertise and the information our clients deserve to have access to before they walk into a courtroom.

If you are facing criminal charges or a DWI in Texas and want to speak with the attorneys behind this work, call (214) 225-7117 or visit our Schedule an Appointment page for a free, confidential consultation.

Knowledge Vault Blog

When the Evidence Is AI-Generated: The Take It Down Act, Section 1466A, and What the Strahler Case Means for Criminal Defense

By Douglas E. Huff  |  Partner, Deandra Grant Law  |  Dallas, Texas On April 7, 2026, the United States Attorney for the Southern District of Ohio announced the first federal conviction under the Take It Down Act, the bipartisan federal statute signed by President Trump in May 2025 that criminalizes the non-consensual publication of intimate […]

Texas CLR Connect: A New Statewide Forensic Discovery Portal, and What It Will (and Won’t) Change

In August 2026, if the rollout stays on schedule, the way crime-laboratory records reach Texas criminal defendants will change. Not because the underlying law of discovery is changing (the Michael Morton Act and the rest of Article 39.14 of the Texas Code of Criminal Procedure remain what they were) but because the Texas Department of […]

The Judge Had a YouTube Channel: A Public Warning Over a Livestreamed Courtroom and Conduct From the Bench

How Bexar County district judge Stephanie Boyd earned a Public Warning from the Texas State Commission on Judicial Conduct THE QUICK ANSWER In June 2026, the Texas State Commission on Judicial Conduct issued a Public Warning to Bexar County district judge Stephanie Boyd. The Commission found that she livestreamed her court on a YouTube channel […]

Two Admonitions in One Day: A Senior Judge, an Ex Parte Call and Slurs in the Courtroom

How Bexar County senior district judge Mark Luitjen earned two Public Admonitions from the Texas State Commission on Judicial Conduct THE QUICK ANSWER On a single day in December 2020, the Texas State Commission on Judicial Conduct publicly admonished Bexar County senior district judge Mark Luitjen twice: once for an improper ex parte call to […]

Arson Convictions, Cameron Todd Willingham, and Texas’s Junk Science Writ

In late April 2026, The Appeal reported on the appeal of Maria Montalvo, a New Jersey woman convicted in 1996 of murdering her two young children in a car fire and sentenced to 100 years in prison. Her attorneys at the New Jersey Office of the Public Defender argue that every forensic indicator the State’s […]

Daniel Ross: A Frisco Traffic Stop, a Gun and the Hemp-Law Problem

By Deandra Grant & Griffin Grant Welcome to The Defense File, where we examine the criminal cases of public figures through the lens of Texas criminal law. Each entry looks at what happened in court, what the defense argued, and what a defendant would have faced (and how they might have been defended) if the […]

Adam “Pacman” Jones: Talent, Trouble, and a Pattern of Charges

By Deandra Grant & Griffin Grant Welcome to The Defense File, where we examine the criminal cases of public figures through the lens of Texas criminal law. Each entry looks at what happened in court, what the defense argued, and what a defendant would have faced (and how they might have been defended) if the […]

Ask Deandra: Can I Get a DWI in Texas if I’m Only on Prescription Medication?

Prepared June 2026 By Deandra Grant, J.D., M.S. (Pharmaceutical Science), ACS-CHAL Forensic Lawyer-Scientist The question: Can I get a DWI in Texas if I’m only taking prescription medication? The short answer: Yes. Texas DWI law does not require alcohol. Under Penal Code §49.01, a person is intoxicated if they have lost the normal use of […]

Ask Deandra: Can I Get a DWI for Marijuana or Edibles in Texas?

texasdwisite.com/blog/ — Prepared June 2026 By Deandra Grant, J.D., M.S. (Pharmaceutical Science), ACS-CHAL Forensic Lawyer-Scientist The question: Can I get a DWI for marijuana or edibles in Texas? The short answer: Yes. Texas has not legalized recreational marijuana, but legality is not the question for DWI purposes. Even where cannabis is legal under another state’s […]

Ask Deandra: What’s the Difference Between a DWI and a DUI in Texas?

By Deandra Grant, J.D., M.S. (Pharmaceutical Science), ACS-CHAL Forensic Lawyer-Scientist The question: What’s the difference between a DWI and a DUI in Texas? The short answer: In Texas, DWI and DUI are not interchangeable. DWI (Driving While Intoxicated under Penal Code §49.04) applies to adult drivers and requires either a blood alcohol concentration of 0.08 […]