Knowledge Vault Blog

The Knowledge Vault Blog

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

View Blog Posts

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

Blood Alcohol Content Forensics Presentation Accepted for ACS National Meeting

Blood Alcohol Content Forensics Presentation Accepted for ACS National Meeting

Collin County DWI Attorney Deandra M. Grant has created an oral presentation that has been accepted for use in the 247 th ACS National Meeting & Exposition , which is being held in the spring of 2014 by the American Chemistry Society (ACS). The event, which is expected to draw about 10,000 attendees, will be held in […]

Deandra Grant Completes DNA For Lawyers Seminar

20 lawyers from all over the country gathered at Boise State University this month to attend a hands-on DNA course taught by Dr. Greg Hampikian (of Amanda Knox fame) called DNA for Lawyers. This course allowed the attorneys to actually extract DNA from start to finish over a 3 day period. DNA exoneree Charles Fain paid a […]

Deandra M. Grant is Invited to The National Trial Lawyers: Top 100 Trial Lawyers for 2013!

Attorney Grant Is Attorney at Law Magazine's New Local Legal Authority in DWI for Collin, Dallas, and Denton Counties

At Deandra Grant Law – Criminal & DWI Defense, we are committed to providing excellent legal representation for the citizens of Collin and Dallas counties who are facing DWI charges. For over 20 years we have committed our practice to protecting our clients’ rights in the harsh Texas criminal justice system. Our hard work and dedication has not […]

Attorney Grant Teaches DWI 101 Class

Attorney Grant Is Attorney at Law Magazine's New Local Legal Authority in DWI for Collin, Dallas, and Denton Counties

Our law firm’s founder, Attorney Deandra M. Grant, recently had the privilege of teaching some of Texas’ future lawyers about the art of effectively representing clients in DWI cases. Ms. Grant joined another lawyer last Thursday in teaching a DWI class for the Criminal Defense Clinic of the Texas Tech University School of Law. Our firm’s […]

Family Violence Charges in Collin County: What You Need to Know Before It’s Too Late

Family Violence Charges in Collin County What You Need to Know Before It’s Too Late

A family violence charge in Collin County is not like other criminal charges. Even a misdemeanor conviction carries consequences that follow you for the rest of your life — including the permanent loss of your right to own a firearm under federal law, the inability to seal your criminal record, and the enhancement of any […]