Impairment & Causation
- Was the at-fault driver impaired at the time of the crash?
- Does available evidence support impairment as a causal factor?
- Are conclusions consistent with real-world performance?
Impaired Driver Crashes Consulting & Expert Witness Services
Evidence-based analysis of drug and alcohol impairment in high-stakes crash litigation. Supporting plaintiff and defense counsel nationwide.
The Legal Reality
- DUI crash cases hinge on impairment, causation, and timing
- Evidence is indirect, delayed, and frequently contested
- Attorneys need applied interpretation—not assumptions
Impairment evidence is often indirect
Toxicology, behavior, and timelines must be reconciled
Key Questions Courts and Juries Must Resolve
Toxicology & BAC Interpretation
- What can be concluded from post-mortem or delayed toxicology?
- Can BAC or drug concentration be credibly estimated at time of driving?
- What assumptions and limitations apply to extrapolation?
Behavior & Performance Expectations
- What behavior would be expected given specific test results?
- Do observations align with toxicology findings?
- Are alternative explanations adequately considered?
What Sets a 7 Arrow Impaired‑Driving Expert Apart
7 Arrow Forensics provides applied expertise grounded in science and real-world investigation—not theoretical models alone.
Clients are supported by an expert who brings:
- First-hand evaluation of alcohol- and drug-impaired individuals
- Administration and analysis of alcohol dosing studies
- Advanced training in clinical and forensic toxicology
- Extensive experience in DUI crash litigation
- Instructor across NHTSA sobriety testing curricula (SFST, ARIDE, DRE)
- Training delivered to law enforcement, attorneys, judges, and toxicologists
When Impairment Evidence Drives the Case, Clarity Matters
Scientific credibility and applied experience are essential when impairment evidence is disputed.
Next Steps
Free Initial Consultation