Trucking experts evaluate the safe operation of commercial vehicles and standards of care and accepted practices of commercial vehicle operators and motor carriers. Areas of expertise include regulatory compliance, defensive driving, driver actions and responses, air brake systems, commercial vehicle inspection procedures, ECM (“black-box”) data and on-board computers. Behaviors that lead to or that increase the consequences of crashes such as unsafe driving, fatigued driving, driver fitness, controlled substances and alcohol, vehicle maintenance, cargo related issues, crash history involvement and the corporate safety culture are investigated. Experts may also reconstruct, test or reenact a particular maneuver or procedure.