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

Texas SB 4 Goes Live May 15: What Defense Lawyers and Their Clients Need to Know Right Now

On April 24, 2026, the en banc Fifth Circuit vacated the preliminary injunction that had kept Senate Bill 4 (the 2023 statute creating new state criminal offenses for unlawful entry into Texas) on ice for nearly three years. The 10–7 ruling did not decide whether SB 4 is constitutional. It held that the plaintiffs (Las […]

How Forensic Misconduct Can Unravel a Conviction: The Missy Woods Case and What It Means for Texas

For 29 years, Yvonne “Missy” Woods was a star analyst at the Colorado Bureau of Investigation. She testified in high-profile murder trials. She was trusted as the gold standard in DNA testing. Prosecutors built cases around her results. Juries convicted defendants on the strength of her reports. Then, in September 2023, an intern doing a […]

Delta-8 Just Got Complicated in Texas: What the Supreme Court’s Ruling Actually Means If You’re Charged

On May 1, 2026, the Texas Supreme Court lifted the injunction that had blocked the Department of State Health Services from enforcing its classification of Delta-8 THC as a Schedule I controlled substance. Headlines declared Delta-8 effectively banned. The hemp industry reacted immediately. So did the confusion. The ruling is significant. But what it actually […]

Deandra Grant Awarded NSDAR Women in American History Award

A recognition from the Daughters of the American Revolution presented during the chapter’s America 250! Community Awards Banquet.  The Preston Trail Chapter, National Society Daughters of the American Revolution has selected Deandra Grant to receive its Women in American History Award. The award will be presented at the chapter’s America 250! Community Awards Banquet on May 7, 2026.   The Women in American […]

What the Jordan Ruling Means for Intellectual Disability and Capital Punishment

On April 9, 2026 (Clarence Curtis Jordan’s 70th birthday) the Texas Court of Criminal Appeals vacated his death sentence and sent his case back to Harris County for a new punishment proceeding. Jordan had been on Texas death row since 1978. He was found incompetent to be executed in 1988. For nearly four decades after […]

Can the Algorithm Convict You? TrueAllele and a Defendant’s Right to Cross-Examine the Code

In March 2026, the U.S. Court of Appeals for the Third Circuit handed prosecutors a significant victory in DNA mixture litigation. In United States v. Anderson, No. 25-1223, the court ruled that TrueAllele (a proprietary DNA interpretation software used by crime labs across the country) is reliable enough under Federal Rule of Evidence 702 to […]

Ask Deandra: What Are the Penalties for a First DWI in Texas?

By Deandra Grant, J.D., M.S. (Pharmaceutical Science), ACS-CHAL Forensic Lawyer-Scientist The question: What are the penalties for a first DWI in Texas? The short answer: A first-offense DWI in Texas is typically a Class B misdemeanor carrying up to 180 days in jail, a fine of up to $2,000, and a driver’s license suspension between […]

Ask Deandra: Can I Get Deferred Adjudication for a DWI in Texas?

By Deandra Grant, J.D., M.S. (Pharmaceutical Science), ACS-CHAL Forensic Lawyer-Scientist The question: Can I get deferred adjudication for a DWI in Texas? The short answer: Sometimes. Deferred adjudication for DWI was unavailable in Texas for decades until HB 3582 passed in 2019. Today, deferred adjudication is available only for first-offense DWI cases where the driver’s […]

Online Solicitation of a Minor in Texas: What §33.021 Actually Covers and How These Cases Are Defended

Online Solicitation of a Minor in Texas What §33.021 Actually Covers and How These Cases Are Defended

Online solicitation of a minor is one of the most aggressively prosecuted sex offenses in Texas, and one of the most frequently charged as a result of law enforcement sting operations. If you have been arrested under Texas Penal Code §33.021, you may be facing a felony with mandatory sex offender registration and the circumstances […]