DOI: https://doi.org/10.33994/kndise.2020.65.38

V. Aksonov, V. Kozhevnikov

This article discusses the possibilities of using the “Trifolin” powder as a magnetic powder for fingerprint research. The aim of the study is to establish the presence of the qualities of this powder, which is put forward by the Methodology of fingerprint research for magnetic fingerprint powders. This is necessary for their further use as a powder method for identifying sweat traces of papillary patterns as one of the physical methods for identifying hand traces.

The main qualities are the presence of the magnetic and adhesive properties of the powder for its high-quality adhesion both to the magnetic brush and to the trace substance of the trace. Solving the issues of searching for new and affordable means of detecting trace information during expert research and during inspections of crime scenes is one of the important issues in modern conditions, which requires additional research.

A separate issue of this work is the establishment of the possibility of further study of sweating or blood traces of the hands for immunological or molecular genetic studies. To obtain positive research results, several general, general scientific and special research methods were used. According to the findings of the work, it was found that the magnetic powder “Trifolin” in its magnetic and adhesive properties fully meets the requirements of the methodology of fingerprint research, presented to dark magnetic fingerprint powders.

Fingerprint research techniques presented to dark magnetic fingerprint powders. This allows, first, to qualitatively identify traces of fingerprints of various origins and which are left on different surfaces. A feature of the powder under study is the absence of a destructive effect on the biological component of traces of sweat and handprints contaminated with blood. The use of “Trifolin” powder for fingerprint research and the ability to successfully conduct biological (immunological and molecular genetic) research on the processed traces undoubtedly makes up the scientific novelty of the research and is the basis for further scientific research.

Key words: handprints, trifolin, magnetic powder, identification, papillary lines, papillary pattern, surfaces, complex examinations, molecular genetic research.