This book presents a general method that lawyers, prosecutors and judges can follows to assess the quality and scientific content of technical work done for an accident and crime scene reconstruction. Using multilevel sequence of events analysis allows all key events to be fully identified, which in turn assists judicial bodies in identifying where to assign specific criminal liability. Created from a concept long sought by the two authors (an engineer and an attorney), the method allows readers without any technical background to progress from an examination of evidence gathered at the scene of a complex accident and to reconstruct "beyond reasonable doubt" the events that took place. Once created and scientifically verified by the sequence of events analysis, the chain of key events serves as a reference source for various levels of complex organizations and inter-organization structures in cases involving complex criminal responsibilities.