David M. Gill, CFSE, WACH Expert Witness
Curriculum Vitae

Forensic Slip Expert, Walkway Safety Auditor

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Specialties & Experience of this Expert Witness

General Specialties:

Slip Trip & Fall and Premises Liability

Keywords/Search Terms:

Dynamic Coefficient of Friction, Maintenance Protocol, Coefficient of Friction, Walkway Safety, Means of Egress, Slip Resistance Testing, Visual Warning Placement, Flooring Maintenance, Pedestrian Walk, Traction, Floor Mats, Bathtubs, Shower, Painted Surfaces, Coatings, Change in Elevation, Stairway Falls, Means of Egress, Parking Lot

Education:

Bachelor of Science in Textile Management & Marketing, Philadepphia College of Textiles & Science

Years in Practice:

17

Number of Times Deposed/Testified in Last 4 Yrs:

75

Additional Information

I am an expert in Walkway Safety, specializing in Slip and Fall and Trip and Fall incidents. As a seasoned Slip and Fall Expert Witness, Trip and Fall Expert Witness, and Slip Expert, I provide objective, data-driven evaluations of walkway conditions, surface traction, and contributing factors in Premises Liability cases. My work includes Slip Resistance Testing, Coefficient of Friction (COF) Testing, Static COF, and Dynamic COF Testing to determine whether walkways meet recognized safety thresholds. As a certified Walkway Auditor, I conduct thorough assessments of floors, ramps, and stair systems, including investigations of Stairway Fall events. I support attorneys, insurers, risk managers, and property owners by analyzing walkway hazards, reviewing maintenance and cleaning practices, and evaluating the effectiveness of Slip and Fall Prevention and Trip and Fall Prevention programs. My reports and testimony are grounded in recognized standards, reliable methodology, and over a decade of forensic assessment experience. I hold multiple professional certifications, including: 1) Walkway Auditor Certificate (WACH) – National Floor Safety Institute 2) Certified Forensic Slip Expert (CFSE) – National Institute of Forensic Studies 3) Certified Walkway Auditor – University of North Texas, Department of Engineering 4) Certified Operator of the BOT 3000E (Binary Output Tribometer) – Walkway Management Group I also maintain supplemental certifications in walkway safety from the National Floor Safety Institute and National Safety Council, and I serve as a voting member of ASTM International Committee F13 – Pedestrian/Walkway Safety and Footwear. Professional memberships include: 1) ASTM International 2) American Society for Safety Professionals (ASSP) 3) National Floor Safety Institute (NFSI) 4) National Fire Protection Association (NFPA) 5) National Safety Council (NSC) 6) International Code Council (ICC) These affiliations support ongoing professional development, access to peer-reviewed research, and adherence to evolving walkway safety standards. If you need a qualified expert to interpret surface traction, evaluate walkway design, or provide defensible findings in a slip, trip, or fall claim, I am ready to help.