HABSI: an expert system to reconstruct crime scene based on bloodstain interpretations

The authors present a new way to reconstruct a crime scene by using modern technology. They select bloodstain evidence which is based on Mark theory as the approach. Mark theory relates to the gathering, analyzing, and inferencing of physical evidence. The crime scene is reconstructed using the expert system HABSI, which uses a heuristic approach to bloodstain interpretation. EXSYS was used as an expert system shell to develop the system. The knowledge and the rule base are described. The goal was to represent the concept and implementation of fuzzy set theory to aid in the problem of reconstructing the crime scene. The prototype meets the initial requirements. Iterative refinements of the knowledge base through knowledge acquisition, knowledge representation, knowledge programming, and knowledge testing were conducted until user expectations were met