The Warren Group engineers and reconstructionists evaluate single vehicle and multi-vehicle accidents involving passenger cars, commercial vehicles, heavy tractor-trailer trucks, bicycles, motorcycles, ATVs and pedestrians. They offer thorough investigation and analysis of single vehicle accidents, multi-vehicle accidents, vehicle-pedestrian accidents, and vehicle-bicycle accidents. Our engineers and reconstructionists help you decide if the accident was the result of human error, design problems, manufacturing problems, maintenance issues, or mechanical failure.