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Scheiner Law Group: A Certified Field Sobriety Test Instructor Who Trains Other Lawyers

Grant Scheiner is trained by both the National Highway Traffic Safety Administration and the International Association of Chiefs of Police as a certified instructor of the field sobriety tests used in Houston — meaning he is qualified to teach the exact protocol police officers themselves are trained on, a documented credential distinct from simply cross-examining an officer about it in court.

At a Glance

Origin and Background

Grant Scheiner has practiced criminal and DWI defense in Houston since 1992. He holds Board Certification in Criminal Law and has been named among Houston’s top lawyers every year since 2006. Beyond his legal credentials, he is a certified field sobriety test instructor trained by both the National Highway Traffic Safety Administration and the International Association of Chiefs of Police — the same standardized protocol Houston-area police officers are trained on, qualifying him to teach the test rather than only argue about it after the fact.

Practice Concentration

The firm handles the full range of DWI and intoxication offenses — first and second offense DWI, felony DWI, DWI with a child passenger, intoxication assault and manslaughter, and the less commonly covered boating-while-intoxicated (BWI) and flying-while-intoxicated charges — alongside broader criminal defense. See this Houston DWI/DWI Defense directory for how this field-sobriety-instructor credential compares to other Harris County defense practices. Scheiner is also a published writer and lecturer; his article “Attacking the DWI Video” was the cover feature of Voice for the Defense, the Texas Criminal Defense Lawyers Association’s publication, and he regularly instructs other defense attorneys on cross-examination strategy.

Track Record

The firm’s published case results include a not-guilty verdict on an aggravated assault charge stemming from a road-rage shooting incident, and multiple dismissed aggravated assault charges, including a gang-related beating and shooting case and a domestic knife-threat case. These are firm-published, self-reported results and have not been independently re-verified against court dockets by this profile; past results do not guarantee similar outcomes, and every case depends on its own specific facts.

Client Voice

The firm holds a Better Business Bureau A+ rating and a 4.8-star average across 62 Google reviews. Reviewers repeatedly describe being walked through an unfamiliar legal process during a difficult time and cite specific named staff (Scheiner and paralegal Macie) for responsiveness. Awesome Attorneys did not identify a pattern of negative or unresolved reviews warranting disclosure.

Beyond the Courtroom

Scheiner’s published field sobriety test instructor certification and his cover-story article for the Texas Criminal Defense Lawyers Association’s Voice for the Defense both represent contributions to the broader defense bar’s training and knowledge base, distinct from his individual case practice.

Recognition

Scheiner’s Board Certification in Criminal Law is the state’s official specialty credential; his NHTSA/IACP field sobriety test instructor certification is a separate, independently administered technical credential. His Texas Super Lawyer selection and Top 100 Trial Lawyers recognition (since 2007) are peer-nomination-based distinctions, while his annual “Houston top lawyer” and “Best of Houston” recognitions are publication-driven placements — Awesome Attorneys notes these are distinct in character from the board certification and instructor credential above.

Texas Legal Backdrop

A Texas DWI arrest triggers two separate proceedings: the criminal case, and a civil Administrative License Revocation (ALR) case against the driver’s license, with only 15 days from the notice of suspension to request the ALR hearing before an automatic suspension takes effect. Boating while intoxicated (BWI) carries the same 0.08% legal limit and Class B misdemeanor penalty structure as a standard DWI under Texas Penal Code §49.09. None of this is legal advice; anyone facing a DWI or BWI charge should consult a licensed Texas attorney about the specific facts of their case.

Awesome Attorneys Assessment

Scheiner Law Group’s clearest, most checkable differentiator is Grant Scheiner’s dual credential as both a Board Certified criminal law attorney and an NHTSA/IACP-certified field sobriety test instructor — a combination that lets him challenge test administration from a position of documented instructor-level expertise. The honest trade-off: the firm’s published case results are self-reported rather than independently re-verified by this profile, and prospective clients should confirm during intake whether Scheiner personally handles the case day-to-day. For a Harris County client facing a DWI where field sobriety test administration is contested, or a less common charge like BWI, this combination is a genuine, checkable basis for a shortlist.

Methodology and Sourcing

This profile was researched from Scheiner Law Group’s official website (scheinerlaw.com), including its published case results, client reviews, and attorney credentials.

Publisher Disclosure and Independence Notice

Awesome Attorneys is an independent legal directory and editorial publication. This profile was not paid for, commissioned, or reviewed by Scheiner Law Group, P.C. prior to publication. Awesome Attorneys may in the future offer sponsored placement products to attorneys and firms, including this one, but sponsorship has no bearing on the editorial content, inclusion, or findings of this profile.