ABSTRACT
A technology of mobile devices on the basis of Android and iOS sharing, in which previously trained neural networks on the mobile device with the use of the Skull-face program place the reference points in automatic mode with subsequent analysis of the images and obtaining the result in less than 1 min, has been developed. Data processing and acquisition of results immediately at the scene of an accident can provide invaluable assistance in the mass admission of unidentified corpses in cases of emergency; will allow to rapidly, excluding the influence of subjective factor, solve expert tasks, improve the accuracy, effectiveness and performance of forensic personality identification.
Subject(s)
Neural Networks, Computer , Humans , Software , Mobile Applications , Biometric Identification/methods , Biometric Identification/instrumentation , Image Processing, Computer-Assisted/methodsABSTRACT
OBJECTIVE: To determine the specific morphological features of damages on the cloth and biological simulator of the human body in the detonation of RGD-5 and RGN fragmentation hand offensive grenades. MATERIAL AND METHODS: The study was carried out on the 12 targets from a biological simulator of the human body wrapped in cotton cloth by detonation of examined grenades at a distance of 50 cm and 1 m from the target. RESULTS: The character and features of damages of cloth and human body biological simulator, features of soot deposition made it possible to determine specific signs for each of examined offensive grenades types. CONCLUSIONS: The complex of obtained data allows to determine with high accuracy the detonation distance and the type of explosive device.
Subject(s)
Blast Injuries , Humans , Blast Injuries/pathology , Forensic Pathology/methods , Explosions , Models, BiologicalABSTRACT
The purpose of the study is a theoretical analysis of the available types of contact traces of blood and the establishment of their occurrence at the objects of medical and forensic examinations. Contact marks are formed as a result of the mechanical interaction of two objects, one of which is stained with blood. The literature data allow us to distinguish several types of contact traces of blood: impressions, smears, smearing, «voids¼, traces in the form of changes in the existing stain from wiping, washing, traces-artifacts from insects. Each type has a mechanism of formation and characteristic features. We analyzed 107 archival medical and forensic examinations. In the examinations in which the material situation of the scene of the incident (5 or more objects) is maximally represented, contact traces were present in 76% of the examinations, which indicates a high occurrence. The following types of contact traces of blood were the most common: smears (29% of all examinations), smearing (22.4%) and «voids¼ (10.3%). Other types of contact traces were less common.
ABSTRACT
The study of the amino acid composition of dentin is a new approach to determining the biological age of a person in Russia. Abroad, this method is more studied, but the authors in their research use various equipment and reagents, which makes it difficult to find the optimal technical standard for implementation in domestic practice. We studied the literature over the past 5 years on age estimation by the amino acid composition of dentin. The equipment used in the work and the results obtained were compared. A comparative evaluation of the data made it possible to make an assumption about gas chromatography using mass selective or flame ionization detectors as a method of choice for studying the amino acid composition of tooth dense tissues.