When alcohol service results in catastrophic injury, wrongful death, or complex liability disputes, attorneys require a qualified, experienced Dram Shop Expert Witness who understands both statutory standards and real-world hospitality operations.
Ryan Dahlstrom and Preston Rideout are nationally retained Dram Shop Expert Witnesses providing expert reports, depositions, trial testimony, and litigation support in dram shop and alcohol liability cases across the United States.
(702) 696-8745
Dram shop litigation frequently centers on:
Our team provides detailed, evidence-based analysis grounded in operational experience and statutory alignment.
We serve both Plaintiff and Defense counsel nationwide.

Dram shop Expert Witness
Ryan Dahlstrom brings more than 35 years of hands-on hospitality, nightlife, and venue management experience.
As a Consulting and Testifying Dram Shop Expert Witness, he evaluates:
His real-world operational authority allows jurors to understand how alcohol service decisions are actually made in high-volume hospitality environments.
Preston Rideout is a nationally retained Dram Shop Expert Witness specializing in:
With extensive multi-state certification expertise, Preston provides statute-aligned analysis in jurisdictions across the country.
We provide comprehensive expert services in:
Alcohol Overservice Expert Witness Analysis
Evaluating drink pacing, POS timelines, service intervals, and operational enforcement.
Visible Intoxication Expert Witness Evaluation
Determining whether observable signs of impairment were present at the time of service.
Obvious Intoxication Expert Witness Testimony
Applying statutory “obvious intoxication” standards in jurisdiction-specific litigation.
Dram Shop Safe Harbor Expert Witness Review
Assessing certification validity, policy enforcement, and statutory defense eligibility.
Responsible Vendor Compliance Evaluation
Analyzing training programs, certification documentation, and enforcement consistency.
Dram Shop Laws by State Analysis
Aligning operational findings with jurisdiction-specific statutory requirements.
Objective, evidence-based testimony strengthens credibility on either side of litigation.
To establish:
To establish:
Dram shop cases often involve:
Each case requires detailed operational reconstruction.
Our multi-state experience allows alignment with jurisdiction-specific statutory standards.
A credible Dram Shop Expert Witness must possess:
Ryan Dahlstrom and Preston Rideout combine operational leadership with litigation-tested expertise.
If you are litigating a dram shop or alcohol liability matter, early expert consultation can clarify:
Contact our office for confidential case review and retention information.