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Lighting Expert Witnesses

Lighting expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on lighting. The lighting expert witness listings on this page are typically from fields/areas of expertise such as: Accident Reconstruction, Architecture, Construction Defects, Electrical Engineering, Engineering, Human Factors, Landscape Design, Meteorology, Premises Liability, Property Management, Safety, Security, Slip Trip & Fall, and Traffic Engineering.

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Nicholas Strachan, PE

Electrical Engineering and Construction Defects

Vilano Engineering, LLC

California

Electrical Engineering, Construction Defects - Construction Defects of Electrical, Fire Alarms, Lighting, Telecommunications Systems in Commercial and Residential buildings, Condominiums, Laboratories, Museums, Office Towers, University Campuses

Nicholas Strachan is a licensed Professional Engineer (Electrical) in Arizona, California, Florida, Georgia, New York, and North Carolina, and a licensed Plans Examiner in Florida. He has over 25 years of experience in engineering design and quality assurance inspections of electrical systems for construction projects in the US and abroad. These projects included commercial and residential structures, laboratories and higher educational facilities, museums and cultural facilities, and sports arenas. His technical knowledge and experience are predominantly focused on electrical, fire alarm, lighting, and telecommunication systems design in new and existing buildings. Nicholas provides expert witness and litigation consulting services related to electrical failures, construction defects, and insurance claims. These services include: - Technical Evaluations - Documentation and Reporting - Expert Testimony Most recently, Nicholas testified at an evidentiary hearing at the Dade Co...

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Stephen George

Landscape Design and Construction Defects Expert

Landscapes West

San Diego, California

Construction Defects, Landscape Design - landscape standards, construction defects, landscape design, irrigation, landscape construction, water intrusion, personal injury, arboriculture, property line dispute, landscape standard of care & standard for the industry, lighting, maintenance practices, cost to cure, masonry, concrete, drainage, industry standards

California Landscape Contractor - Lic. #389976 & #961442 Certified Segmented Retaining Wall Installer - CSRW1 Certified Concrete Paver Installer ICPI Interlocking Concrete Pavement Institute Specialist Course - Permeable Paver Installation ICPI Interlocking Concrete Pavement Institute MWEL Mastering Water Efficient Landscapes CLCA California Landscape Contractors Association & The Metropolitan Water District Belgard Hardscapes Belgard Authorized Contractor Certificate of Authenticity Memberships: CLCA California Landscape Contractors Assoc. IR Irrigation Association ISA International Society of Arboriculture CNHA National Concrete Masonry & Hardscapes Association PTCA Professional Tree Care Association of San Diego Awards: California Landscape Contractors Association Residential Design & Build Residential Landscape Construction Commercial Design & Build Comme...

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John Tyson, BS, MS, JD, P.E.

AR TECH FORENSIC EXPERTS INC.

Encino, California

Accident Reconstruction, Slip Trip & Fall - Vehicle Accident Reconstruction, Car, Bus, Bicycle, Pedestrian, Computer modeling, 3D, Accident Animation 3D Simulation, laser scan, Matterport, Faro, SAFETY, Stairways, ramps, ADA, Building Code Analysis, Coefficient of Friction Testing Products, Lighting, Guards, Industrial

Mr. Tyson has over thirty four years full time experience in Accident Reconstruction, Safety and Forensic Engineering. He has investigated, analyzed and reconstructed more than fifteen thousand accidents during this period. Consultant to many Governmental and Municipal agencies including United States Attorney, Federal Government, Department of Justice, State Attorney General California, Cities of Los Angeles, Burbank, Pasadena, Glendale, Ontario, Santa Monica ,San Gabriel, Ventura , Fountain Valley, Santa Barbara, Calexico, County of Los Angeles, Orange County, Ventura County. Goleta CALTRANS, State of California. He has supervised and trained many Engineers and Physicists in the field of Forensic Engineering. He has testified on several hundred occasions on a variety of aspects of accident reconstruction for both plaintiff and defense in depositions, arbitrations, civil and criminal, trials in Municipal and Superior Courts He has been a court appointed expert in nu...

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Matthew J Hartley, BS, LC, MIES

Nationally Recognized Lighting Expert

Matt Hartley Lighting, LLC

Arvada, Colorado

Engineering, Architecture - Lighting, Illumination, Interior Lighting, Street and Area Lighting, Lighting Survey, Fixture Construction, Lighting Installations, Premises Liability Lighting, Security Lighting, Insufficient Lighting, Accident Investigation Lighting, Human Factors, Slip & Fall, OSHA, Glare, Visibility, Walking and Working Surfaces, Control Systems

Illumination Engineer, consultant, teacher, inventor, forensics investigator, and expert in lighting. My 30+ years of experience has immersed me in different facets of the lighting industry. I have worked for companies that cater to lighting design, lighting equipment manufacturing, 3d modeling lighting software, sales and service including post occupancy evaluation. My design experience includes indoor/outdoor lighting, safety and security, lighting and human health, glare, roadway lighting, sports lighting, and lighting standards. Since 1999, I have been involved with standard writing committees within the Illuminating Engineering Society (IES). For the IES, I served on 13 IES committees, of which was the chair of 7 of those committees producing over 11 standards documents. Teaching has also been a part of my career, instructing diverse groups from high school students to seasoned lighting professionals allowing these individuals to understand the concepts on their level. ...

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Elisa Mula

Westport, Connecticut

Security, Premises Liability - schools, school safety, foreseeability, facial recognition, alarms, access control, surveillance, parking lots, bars, hotels, concerts, sporting events, apartments, retail, guards, lighting, risk assessments, security adequacy

Security consultant and expert witness. Masters degree in protection management, physical security. Diverse experience with security technology such as access control, facial recognition, and video surveillance. Significant teaching/training experience. Special experience in school security.

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David Collette

Walkway Safety Auditor for Forensic Analysis

Substratum Group, Inc

Florida

Slip Trip & Fall, Premises Liability - slip, trip, fall, stairway, ramp, sidewalk, lighting, cleaning, flooring, bath mats, parking stripes, tubs, tile, forensic analysis, walkway auditor, coefficient of friction, surface roughness, parking lot, ADA, OSHA

Mr. Collette has a degree in Mechanical Engineering and is a qualified Walkway Auditor. He has over 20 years of experience in developing, commercializing, analyzing, and troubleshooting walkway solutions including chemistry, tools, mats (walk-off, bath), cleaning processes, coatings, treatments, and flooring material selection. He worked in global innovation, product management/development, and customer solution development for DiverseyLever (institutional chemical business of Unilever), JohnsonDiversey (now Diversey), and Cintas. Mr. Collette is a Walkway Audit Certificate Holder (#31) and has a Certificate in Assessing Walkway Safety from the University of Northern Texas. He provides walkway management services to commercial and institutional facilities across North America. Mr. Collette provies walkway management consulting and services to customers designing, planning, building, maintaining, and insuring facilities. Consulting services include flooring material testing and spec...

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Nicholas Strachan, PE

Electrical Engineering and Construction Defects

Vilano Engineering, LLC

Lake Worth, Florida

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Sean A Ahrens, M.A, CPP, CSC, FSyl, BSCP

Premise Liability, Security and Workplace Violence

Ahrens Security, LLC

Chicago, Illinois

Security, Premises Liability - Premises liability, workplace violence, armed assailant "active shooter", training, operations, alarm, surveillance, access control, intrusion detection, locking, crime prevention through environmental design (CPTED), lighting, apartments, hospitality, parking, commercial, retail

Mr. Sean A. Ahrens is a well-known security/resilience leader who has been providing security consulting for over 22+ years. He has been instrumental in the assessment/analysis, design, implementation of security programs for a wide array of commercial, hospitality businesses and a myriad of other entities. He is well versed in best practices and has documented thousands of vulnerabilities to organizational assets. He has deposition and case experience, and leverages visualizations and data to make powerful impressions regarding foreseeability. He holds a number of certifications. He is a former Crisis Prevention Instructor, Board Certified in security management as a Certified Protection Professional (CPP), a Board Member with the International Association of Professional Security Consultants and holds their Certified Security Consultant (CSC) designation. He is also a Fellow with the Security Institute and former Building Certified Security Professional. **He has conducted hu...

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Paul Heppner, M.S., PMP

Weather investigations, reports, and testimony

Paul Heppner LLC

Marlton, New Jersey

Meteorology - weather, storms, meteorology, slip and fall, precipitation, snow, ice, visibility, lighting, lightning, thunderstorms, wind damage, past weather, weather reconstruction, weather accidents, weather records, expert testimony, wind

As a professional meteorologist with 40 years of experience, I conduct weather investigations, write expert meteorological reports and give expert testimony in Federal and Superior Courts. My reports go beyond a recital of the weather observations. I review the weather data, analyze critical details and apply my expert knowledge of meteorology specifically to the incident location. I help you understand the weather data so you can effectively develop your case for your client. Through my teaching, television and private sector experience, I know how to communicate clearly and concisely to the jury.

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Andrew Sampson

Playground Safety Expert Witness

Huntington, New York

Safety, Property Management - Playground Safety, Premise Liability, Property Management, Playground Supervision, Slip Trips& Falls, Emergency Action Planning, Life Safety, Accident Prevention, Lighting, Property Inspections, Construction Safety, School Playgrounds, Risk Assessment, ASTM F1487

Mr. Andrew Sampson is a safety‑focused engineering and property management professional with 15 years of experience overseeing construction, operations, and risk management across complex, high‑density environments. His background spans Class A commercial properties, life‑safety systems, playground safety standards, and large‑scale maintenance programs, giving him a unique systems‑based perspective on incident causation and hazard control. In his role managing more than 2 million square feet of Class A office properties in Manhattan, Mr. Sampson has directed multi‑million‑dollar construction projects, supervised multidisciplinary engineering and safety teams, and conducted hundreds of inspections to ensure compliance with OSHA regulations, building codes, and industry best practices. His work includes oversight of life‑safety systems, emergency preparedness, equipment maintenance, and operational risk mitigation for high‑value assets. Before entering the commercial real estate sec...

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David Collette

Walkway Safety Auditor for Forensic Analysis

Substratum Group, Inc

Loveland, Ohio

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Kevin A Rider, PhD, PE, CHFP

Human Factors Expert

Forensic Human Factors, LLC

Delaware, Ohio

Human Factors, Traffic Engineering - Distracted driving, Driving behavior, Reconstruction, Biomechanics, Maritime, Manufacturing, Mining, OSHA, Premises Liability, Products Liability, Safety, Slips, Trips, Falls, Transportation, Warnings, Conspicuity, Cell phones, Texting, Lighting

Dr. Kevin Rider is a human factors expert and owner of Forensic Human Factors, LLC, providing investigations, reports and expert testimony for personal injury cases – plaintiff and defense. His expertise involves investigating how people interact with other people, products and environments in predictable ways, and applying this understanding to effective, efficient and safe products, services and systems. He has been consulted as an expert in 49 states (so far). Dr. Rider’s expertise includes: • MVAs and pedestrian collisions, incl. trucks, trains, buses, motor/bicycles • Illumination, nighttime visibility, and conspicuity • DUI/DWIs, where intoxication was not a proximate cause of crash • Adequacy of product designs and warnings • The design and maintenance of safe civil and occupational environments • Premises liability, and slips, trips and falls • Workplace and construction safety Dr. Rider is a Professional Engineer (PE), a Certified Human Factors Professional (CHFP), and ...

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Ellen Szubski, M.S., Ph.D., CXLT, CPSI, AHFP

Human Factors Expert Witness-Consultant

The Warren Group, Inc.

Irmo, South Carolina

Human Factors, Premises Liability - Accident Prevention, Risk Management, Illumination, Conspicuity, Visual Perception, Slip resistance, Playground Safety, Premises Liability, Lighting, Line of Sight, Driver Distraction, Roadway Markings, Environmental Conditions, Slip-Trip- Fall Evaluations, Workplace Injuries, Human Factors, OSHA

Ellen Szubski, Ph.D., is the senior human factors consultant at The Warren Group. She earned a Doctor of Philosophy in Human Factors Psychology and a Master of Science in Applied Psychology from Clemson University. Ellen is also a Certified XL Tribometrist, a Certified Playground Safety Inspector (CPSI), and a Certified Associate Human Factors Professional (AHFP). Ellen worked in the Clemson Visual Perception and Performance Laboratory examining the factors contributing to the conspicuity of pedestrians and bicyclists in challenging road conditions, such as nighttime driving. She did her dissertation on “The Influence of Pedestrian Biological Motion on Time-To-Collision Estimates at Night”. Prior to entering the forensic field, Ellen planned and conducted experiments for a major bicycle manufacturer that improved bicycle conspicuity. She also conducted laser strike perception and performance studies for the Department of Defense. Ellen applies her experience in Human Factors t...

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William H. ElDorado, PE, CXLT

Slip, Trip and Fall Expert Witness

ElDorado Forensics LLC

Lewisville, Texas

Slip Trip & Fall, Premises Liability - ADA, Building Code, Foundation Movement, International Code Council, Means of Egress, Forensic Engineering, Ground Vibration, Slip Resistance, Stairway, Lighting, Property Damage, Handrail & Guardrail

Founded in February 2017, my practice is focused on investigations of premises liability and property damage matters for my client base that consists of attorneys, insurance carriers, self-insured entities and third-party administrators. The following site conditions are analyzed during investigation of premises liability matters: Egress Width, Stairways, Ramps, Slip Resistance, ADA, Trip Hazards, Curbs, Handrails, Guardrails, Step-downs, Doorways/Thresholds, Floor Mats, Lighting, Assembly, and Glass/Glazing. A typical premises liability investigation will involve initial review of documents & files, examination and detailed measurements of the incident area, testing, photograph documentation, analysis of data, review of applicable building codes and/or architectural standards, consultation with the jurisdiction, forming conclusions, producing an expert witness report, and if needed, providing live testimony at deposition or trial. To date I have testified live at 43 depositions...