[The diagnostic significance of the epidermal scales left on the material objects].

The objective of the present cytological study was to elucidate the possibility of examining epidermal scales (ES) for the purpose of forensic medical expertise of material evidence. It was demonstrated that epidermal scales readily removable and constantly detached from the skin during the process of desquamation may remain on the instruments of injury and other objects even after their short-term contact with the human body or as a result of touching these objects with the hands. The epidermal scales were shown to express readily detectable AB0 antigens which makes it possible to determine the identify of the subject to whom they belonged.

[The role of forensic medical expertise of material evidence in the investigations into the cases of sexual offence].

The objective of the present study was to search for the methods for the enhancement of the effectiveness of forensic medical examination of material evidence during the investigations into the crimes against sexual immunity and personal sexual freedom. The work included the analysis of the relevant expert conclusions and copies of the decisions approving the performance of the forensic medical expertises. The study was carried out with the use of the following methods: the extraction of necessary data from the primary materials, their systematization and treatment by the methods of descriptive and analytical statistics.

[The detection of ABO system antigens in bone, nail and tooth fragments].

Fragments of the bones, nails, and teeth were examined in 12 forensic biological departments of bureaus for forensic medical expert evaluation of the Russian Federation. A total of 790 experiments were carried out with 145 bones, 5 teeth, and nails from 12 cadavers. In the overwhelming majority of cases the experiments were carried out with control investigations of blood, hair, salivary, and sweat samples.