Over 3300 contact hours of vehicle accident investigation reconstruction training. 106 retentions on traffic signal timing issues 1997-2023 Observed and/or participated in over 340 crash tests 1992-April 2023

The Accident Expert™ specializes in accommodating legal professionals with Professional Forensic Engineering and Expert Witness services. The Accident Expert™ has been providing technical expertise for attorneys since 1992, while Dr.Presswood, founder and CEO, has functioned as an expert witness continuously since 1974. The corporate office for The Accident Expert™ is located in Las Vegas, Nevada; however, the firm has no geological boundaries and currently serves clients throughout the United States and Great Britain. The firm’s professional experience uniquely qualifies them as experts in various types of civil cases, particularly those involving safety-related issues from pedestrian falls, vehicle accidents (including motorcycles), complex roadway design issues, and construction defects. The Accident Expert™ supports both Plaintiff and Defense in civil and criminal cases. We provide building, site, and accessibility (i.e., ADA) design services for clients in many states and for some of the major casinos and hotels in Las Vegas, Nevada. In addition to forensic services, The Accident Expert™ provides seminars for attorneys, engineers, and other professionals for training purposes and for providing continuing education.

Forensic Scientists - Diverse Technical Staff: IRSA Staff has over 460 person years of courtroom experience. Biomechanics; Reconstruction; Human Factors; Safety; Accident Prevention; Failure Analysis; Product Integrity; Liability; Testing; Warnings; Slip/Trip/Fall; Premises; Construction Defect; OSHA Compliance; Bldg Codes; Fire Protection; Explosions; Firearms/Ballistics; Electrocutions/Shocks; Structural; Recreational; Industrial; Criminal; Auto, Airbags, Aviation, Bicycle, Boating, Chair, Elevator, Escalator, Forklift, Gate, Golf Course, Ladder, Motorcycle, Nuclear, Press, Rollercoaster, Scaffolding, Seatbelts, Stairs, Swimming Pool, Truck; Simulations; Drone Use, 3D Models. Total staff size: 18.

Trip and Fall, Municipal Infrastructure Assessment – Specialty Streets and Sidewalks Asphalt and Concrete Municipal Policies and Procedures.

Here are just a few of the Expert categories we offer: accounting, automotive, biomechanics, business, chemical, cell phone, construction, economics, engineering, failure analysis, finance, firearms, hazardous materials, hotel, insurance, intellectual property, machinery, marketing, medical and medical device, nursing home, pharmacology, product liability, psychology, security, financial securities, toxicology, technical, transportation, valuation, warnings. And thousands more Expert witness categories. Contact us to find the most precise Expert for your case. We will connect you with Experts who are interested and available to meet your time deadlines.

Auto, Motorcycle, Bicycle, Pedestrian crash investigation and reconstruction. Event Data Recorder (black box) technician & analyst including Tesla, Hyundai, & Kia. Vehicle Inspections. Time/Distance Analysis. Drone Mapping & Photogrammetry. Over 20 years of experience with on-scene crash investigations and post-crash reconstructions.

Motor vehicle accident reconstruction, biomechanical analyses, instrumented crash tests, forensic animation, slip/trip/falls, human factors, crash data retrieval/Bena & heavy truck EDR downloads, photogrammetry, traffic camera recordings & screenshots, 3D laser scanning, 3D printing, drone 3D mapping, aerial photography, digital forensics, licensed UAS part 107 pilots. Qualified as expert witness in CA and NV courts.

Experts in Biomechanical Engineering & Accident Reconstruction. Specialties include evaluation of injury causing events, automotive and amusement park testing & evaluation, scene surveys & diagrams, aerial photography, digial forensics, licensed UAS part 107 pilot. Qualified in State & Federal Courts.

Expert witness and scientific analysis for automotive, heavy truck, motorcycle and mobility equipment accidents. Expert electronic data recorder retrieval and analysis – what really happened? Loss of control, severity determination, failure analysis, personal injury, causation, liability, damages, engineering services, tort liability and expert testimony. In-house 3D animation team, traffic safety and highway design, and biomechanics.

Traffic Accident Analysis. Auto, truck, bus, motorcycle, bicycle & pedestrian. Accident reconstruction, biomechanics & human factors. Crash data retrieval, Delta-V, speed, collision severity, occupant dynamics, restraint systems, crashworthiness, product liability, computer animations & simulations. Causation, avoidance & prevention. Expert Witness testimony. Over 30 years of quality services in California for plaintiff & defense counsel. Civil & criminal matters.

Providing professional services as an expert witness to governmental & private clients in traffic collision analysis & reconstruction

Experienced & authoritative expert testimony, reports & analysis on rain, wind, snow, ice & hail, intensity, lightning, dust, fog, visibility, wildfires, smoke assessments, flooding, waves; specialist in auto/boat/plane accident reconstruction, mold, property damage, slip & falls, construction & determining unusualness, normalcy & foreseeability. Weather issues for alternative energy, emergency response & counter terrorism. Air pollution transport. Weather effects on systems & operations. Official data, site visits, clear & convincing testimony, references

4x Forensic Engineering Laboratories is a full-service forensic engineering laboratory. We provide expert witness & analytical & testing services in the following areas: FIRES & EXPLOSIONS: Electrical and gas product defect investigations, thermal & fire modeling & laboratory testing. WATER LOSS: Materials, corrosion & failure analysis of plumbing products. FAILURE ANALYSIS: Metallurgy, product testing & computerized stress analysis. ACCIDENT RECONSTRUCTION: Automotive, trucks, construction equipment & premises liability.

Accident reconstruction & safety analysis. Vehicular collision analysis (all types). Computer aided reconstruction & animation. 3D laser scanning. Point Cloud, 3D modeling & demonstrative exhibits. Pedestrian, bicycle accident investigation. Slips, Trips & Falls. Coefficient of Friction testing. Machinery/design/safety analysis. Product defect evaluation. Code Analysis: premises liability, stairways, guardrails, lighting, glazing. Public safety consultant to numerous cities & theme parks. Over 15,000 investigations. Court testimony in civil & criminal cases over 34 years. Court appointed Forensic Expert. Fellow, American College of Forensic Examiners.