Experience in using computer programs as part of the bloodstain

Abstract

Bloodstain examination is performed when it is necessary to assess the trace pattern at the scene of the incident and determine the features of the mechanism of their formation. Examining multiple blood traces is a time-consuming and lengthy process. Simultaneously, in foreign countries, it has already been partially switched to automatic mode using computer programs. The development of the computer program Autodesk AutoCAD in Russia has enabled the use of a specialized application, Elcovision Forensic, with which the location of the blood source, distance to it, and size are evaluated using marked traces of blood recorded at the scene, as well as three-dimensional models that can be built in software or used objects already built in other three-dimensional reconstruction programs.
 This study presents the experience of using the computer program Elcovision Forensic on two expert practice examples. In both cases, according to the traces of blood recorded at the scene, it was necessary to reconstruct individual stages of the incident. In one of the cases, the possibilities of working with three-dimensional models produced from photographs of the scene are shown. In the second case, blood traces were analyzed directly from digital photographs.
 The main stages of work and functions of the computer program are shown in the examples of bloodstain examinations. The use of Elcovision Forensic in the framework of specific examinations enabled solving of situational issues and establishing individual damage circumstances.