Experience in using computer programs as part of bloodstain examinations

Background: еxamination of bloodstains is appointed in cases where it is necessary to assess the trace pattern at the scene of the incident and establish the features of the mechanism of their formation. Examination of multiple traces of blood is a rather laborious and lengthy process. At the same time, in foreign countries it has already been partially switched to automatic mode using computer programs. The development of the computer program Autodesk AutoCAD in our country has allowed the use of a specialized application Elcovision Forensic, with the help of which the location of the blood source, the distance to it, its size, etc. are evaluated by marked traces of blood recorded at the scene, as well as by three-dimensional models that can be built in software or used objects already built in other three-dimensional reconstruction programs. Case presentation: the article presents the experience of using the computer program Elcovision Forensic on two examples from expert practice. 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 recreated from photographs from the scene are shown. In the second case, the analysis of blood traces was carried out directly from digital photographs. Conclusion: the main stages of work and functions of the computer program are shown on the examples of bloodstain examinations. The use of Elcovision Forensic in the framework of specific examinations allowed to solve situational issues, to establish individual circumstances of damage.