Serving Plaintiff & Defense Attorneys Nationwide
(702) 696-8745Hospitality & Entertainment Industry Expert Witness
35+ years of hands-on experience in bars, restaurants, nightclubs, hotels, live entertainment venues and special events. Consulting and testifying expert retained by plaintiff and defense counsel nationwide — hospitality and venue operations, dram shop and liquor liability, security operations, event management and safety, premises liability, and surveillance video analysis.

35+
Years Exp.
All 50
States Available
Serving attorneys nationwide — plaintiff & defense
Retained by Law Firms Nationwide
Expert Witness Services
Ryan Dahlstrom provides expert witness services to attorneys and insurance professionals in matters involving dram shop and liquor liability, negligent security, premises liability and hospitality operations.
Assessing whether an establishment's alcohol service and operations were consistent with hospitality industry standards.
Expert opinion on visible intoxication recognition, staff management, and the timeline of overservice events.
Evaluating a licensed venue's alcohol-service policies, ID and age-verification practices, and staff procedures against industry standards and the operating requirements that apply to licensed premises.
Assessing security measures, staffing adequacy, use-of-force policies, and incident response in licensed venues.
Reviewing and correlating the toxicologist's report with POS records, surveillance footage, and available evidence to assess the timeline and pattern of alcohol service.
Evaluating staff training programs, responsible beverage service policies, and operational procedures for effectiveness.
Expert analysis of dangerous conditions, foreseeable harm, negligence, and duty of care in hospitality and entertainment venues.
Specialized review of crowd management, security protocols, and operational standards at concerts, festivals, and live events.
Evaluating floor conditions, lighting, maintenance records, and industry standards in restaurant and hospitality slip-and-fall cases.
Expert review of food service operations, staff training, management practices, and liability exposure in restaurant settings.
Detailed written reports that set out the materials reviewed, the industry standards applied and the basis for each opinion, prepared to meet federal Rule 26 and state expert disclosure requirements.
Deposition and trial testimony that explains hospitality operations and alcohol-service standards in clear, plain language for judges and juries.

35+
Years Hands-On Experience
Both
Plaintiff and Defense
All 50
States Available
About Ryan Dahlstrom
Across thirty-five years of bar management, alcohol safety training, and litigation consulting, Ryan Dahlstrom has scrutinized point-of-sale records, surveillance footage, staff depositions, and service logs for dram shop and liquor liability matters nationwide.
Attorneys retain Ryan to explain how bars, restaurants, nightclubs, hotels and event venues actually operate, and to evaluate whether the staffing, training, alcohol-service and security practices in a matter were consistent with hospitality industry standards. His opinions are based on the evidence in the case, including point-of-sale records, surveillance video, incident reports, written policies and deposition testimony.
The Expert Advantage
Ryan Dahlstrom brings 35+ years of hands-on experience operating and managing bars, restaurants, nightclubs, hotels and event venues to dram shop and liquor liability, security, premises liability and hospitality operations matters.
Decades of hands-on bar management, alcohol-safety training and hospitality operations.
Objective, evidence-based analysis for both sides. Ryan's credibility comes from impartiality and operational fact.
Cross-referencing POS records, surveillance video, staff testimony and service logs to establish an evidence-based timeline of events.
Deposition and trial testimony experience, explaining hospitality operations in plain language.
Available for case review, deposition and trial testimony nationwide.
Direct access to Ryan, not a case manager. All consultations are confidential, and Ryan responds to case inquiries within one business day.

Tailored Support
Each engagement is scoped to the facts of the matter. Ryan brings venue-specific operational knowledge to the review of the evidence.
Ryan evaluates operations, alcohol service and security at every type of licensed and hospitality venue, including:
How It Works
A streamlined process designed to give attorneys the expert support they need — efficiently and confidentially.
Contact Ryan directly to discuss the matter. After a conflicts check, he will review the key facts and tell you whether his expertise fits the issues in the case.
Ryan conducts a comprehensive review of all case materials — POS records, surveillance footage, staff depositions, incident reports, and service logs.
A detailed written report sets out the materials reviewed, the industry standards applied and the basis for each opinion, prepared to meet federal Rule 26 and state expert disclosure requirements.
Ryan provides testimony in depositions and at trial, explaining hospitality operations in plain language for the court and jury.
Ryan Dahlstrom has been retained by plaintiff and defense counsel in matters involving dram shop liability, negligent security, premises liability and restaurant operations across the country. Representative engagements are shown below.
Bar Security — Dram Shop
Retained by
Pullano & Siporin — Plaintiff
Services
Case Review, Expert Report, Deposition
Outcome
Settled
Court
Circuit Court of Cook County, Illinois
Date
March 18, 2026
Premises Liability — Event Security
Retained by
GGRM Law Firm — Plaintiff
Services
Case Review, Expert Report, Deposition
Outcome
Settled
Court
District Court, Clark County, NV
Date
March 20, 2020
Dram Shop — Nightclub Operations
Retained by
Thomas J Henry — Plaintiff
Services
Case Review, Expert Report
Outcome
Settled
Jurisdiction
Texas
Dram Shop — Bar Operations
Retained by
Clyde & Co US LLP — Defense
Services
Case Review
Outcome
Settled
Jurisdiction
Washington
Dram Shop — Restaurant Operations
Retained by
Miller Weisbrod Olesky, LLP — Plaintiff
Services
Case Review, Expert Report
Outcome
Settled
Jurisdiction
Texas
Dram Shop — Liquor Liability
Retained by
Siegfried & Jensen — Plaintiff
Services
Case Review
Outcome
Settled
Jurisdiction
Utah
Ryan has been retained in matters by plaintiff and defense counsel nationwide — including cases involving dram shop, bar security, restaurant management, premises liability, and event safety. His CV includes his qualifications and a selection of his engagements.
In-depth articles on dram shop liability, liquor law, and hospitality expert witness practice — written for attorneys.
Liquor liability laws vary significantly from state to state — some impose broad third-party liability, others protect licensed establishments with statutory caps or immunity provisions. Understanding the applicable framework is essential before retaining an expert witness.
Understanding the applicable statute is the first step in evaluating a dram shop claim or defense.
This guide covers the qualifications, questions, and red flags attorneys should consider when retaining an expert in dram shop, liquor liability, negligent security, and premises liability cases. Here's what to look for.
Contact Ryan directly for a confidential initial consultation. He responds to all inquiries within one business day and is available for cases in all 50 states.
Response Time
Initial inquiry response within one business day
Plaintiff & Defense
Retained by both sides — objective, evidence-based opinions
Nationwide
Available for depositions and trial testimony nationwide
Prefer to review credentials first? Download the 2026 Curriculum Vitae
Frequently Asked Questions
Detailed answers to the questions attorneys and insurance professionals most frequently ask when considering Ryan Dahlstrom as an expert witness.
Have a question not answered here?
Contact Ryan directly →Get in Touch
Connect directly with Ryan Dahlstrom to discuss your specific expert witness needs. All consultations are confidential.

Phone
(702) 696-8745
Ryan@ExpertWitness.co
Coverage
Nationwide
Response Time
Within One Business Day