Crime Scene Reconstruction

Crime scene reconstruction is the process of determining the most probable sequence of events that occurred during the commission of a crime. This is accomplished by studying all of the known physical evidence, the expert analysis of the physical evidence, the autopsy protocol, witness statements, the relationships between the physical evidence and victimology. “The crime must be viewed in its entirety and the holistic view must be taken.”

If there is a long chain of multiple events, a segment is simply a single event or several related events cut out from the chain of events for the purpose of analysis. Each single segment or multiple related segments are analyzed separately in order to consider all possible sequences. Each segment is broken down in to the smallest number of possible actions in order to maintain a manageable number of possibilities. After all identified single or related segments have been analyzed, their interrelationships are identified and linked.

Based upon known facts from the data/evidence collection, one should be more probable than the others. If there are insufficient facts, then all should be considered as being equally possible. However, in most cases enough data/evidence is recovered that elimination is possible. The objective is to identify the most probable event sequence.

A crime scene reconstructionist is not an expert in all forensic fields. However, he must have a good working knowledge of all the different forensic fields. The physical evidence and the opinions of the experts will assist in identifying the single most probable sequence. Using deductive logic, physical evidence interrelationships, and expert analysis, a reconstructionist can identify the most probable overall sequence of events.