Why Attorneys Hire DUI and Collision Expert Zachary Marshall

Overview

Attorneys facing DUI, drug impairment, collision, or vehicular cases need more than a surface level review. They need technical clarity, structured analysis, and a consultant who understands both the investigative process and the legal strategies that flow from it.
Zachary Marshall provides that clarity through Legal Limit Consulting, LLC.

As a former Washington law enforcement officer and now a DUI and collision evaluation expert based in Arlington, WA, Zachary brings a rare combination of real world investigative experience and attorney focused analysis. His reports are structured, neutral, and designed to give defense counsel clear advantages during negotiation, administrative hearings, and trial.

Clear, Structured, and Attorney Ready Evaluations

Attorneys hire Zachary because his evaluations are designed to slot directly into litigation strategy. Each report follows a consistent structure that makes it easy to identify procedural weaknesses, documentation issues, and leverage points.

His evaluations include detailed analysis of:

  • Vehicle in Motion observations

  • Personal Contact articulation

  • SFST administration and scoring accuracy

  • Bodycam and dashcam discrepancies

  • DRE methodology and symptomology

  • Draeger breath test procedures

  • Toxicology interpretation

  • Crash dynamics and causation

  • Administrative record inconsistencies

This structure gives attorneys immediate clarity when forming negotiation posture, preparing cross examination, or identifying suppression issues.

SFST and DRE Technical Expertise

Attorneys rely on Zachary for his deep familiarity with NHTSA standards and DRE protocol. Even small deviations in instructions, demonstrations, or scoring can create significant reliability issues. Zachary provides:

  • Detailed breakdowns of clue interpretation

  • Environmental and performance related factors

  • Camera to report comparison

  • Scientific reliability discussions based on NHTSA guidance

His reviews allow attorneys to identify weaknesses that may not be obvious from reports alone.

Collision and Personal Injury Insight

Zachary is also hired for cases that involve crashes, both criminal and civil. Personal injury firms and defense attorneys value his ability to examine collision reports with a technical eye, identifying where officer assumptions do not align with physical evidence or accepted collision mechanics.

His collision support includes:

  • Pre impact vehicle dynamics

  • Causation analysis

  • Scene and roadway condition review

  • Driver behavior and avoidance opportunity evaluation

  • Review of investigative methodology and officer conclusions

This analysis helps attorneys distinguish between impairment evidence and actual causation, which is often a critical issue in both DUI and PI cases.

Neutral, Technically Grounded Perspective

Attorneys consistently appreciate that Zachary’s evaluations are not advocacy. They are technical assessments based on documented standards, evidence reliability, and procedural accuracy.

This neutrality is a key reason attorneys trust his work. His evaluations:

  • Clarify what the evidence actually supports

  • Avoid overstatement

  • Are grounded in recognized standards

  • Hold up under courtroom scrutiny

Attorneys know they can rely on his work for negotiation, hearings, and trial testimony.

Trusted By Both Private and Public Defense

Zachary supports private defense attorneys, public defense offices, conflict panel attorneys, and firms handling high stakes litigation. His evaluations have contributed to favorable negotiations, successful motions, and acquittals in cases ranging from standard DUIs to complex vehicular matters.

He has assisted attorneys throughout:

  • Snohomish County

  • The Seattle Metropolitan area

  • Washington State

  • Oregon

  • California

  • Arizona

  • And nationwide for remote consultation

Responsive, Collaborative, and Easy To Work With

Attorneys frequently note Zachary’s responsiveness and clarity. He is known for:

  • Fast turnaround times

  • Straightforward communication

  • Thorough video and record review

  • Predictable structure and formatting

  • A professional tone that resonates with courts and opposing counsel

His goal is to make the attorney’s job easier while strengthening the overall defense strategy.

Contact

To request a DUI evaluation, collision consultation, or personal injury case review, contact:

Zachary Marshall
Founder and Lead Consultant - Legal Limit Consulting, LLC
Arlington, Washington
Phone: (425) 224 5149
Email: Z.Marshall@LegalLimitConsulting.com
Website: www.LegalLimitConsulting.com

Previous
Previous

SFST Breakdown, What Attorneys Should Look For in Roadside Tests

Next
Next

Zachary Marshall’s Approach to DUI Case Evaluations: Precision, Structure, and Attorney-Ready Analysis