An accident reconstructionist is someone qualified to analyze the many different aspects of n accident and render an opinion on how and why the accident happened. The reconstructionist may also offer an opinion on how the accident may have been avoided. A reconstructionist will not, generally, determine a level of fault or guilt to one party over another. Every accident results from the interplay of a wide variety of factors. For example, in a traffic accident, a reconstructionist may have to assess the role of vehicle speed, time, distance, ambient lighting, seat belt use, air bags, component failure, brakes, human factors, alcohol as a factor, collision avoidance, crashworthiness and tire failures just to name a few possible factors. It is advisable to consult with an attorney if you have been involved in an accident that resulted in injuries.