On Some Issues of Handprints Detection and the Mechanism of Trace Formation on Porous Surfaces
Problems of detecting sweat and grease deposits on porous surfaces are common for forensic practice, and usually, they are successfully resolved with the help of chemical methods. Meanwhile, the interaction process in the system “porous surface – deposit – chemical agent" concerning clarificati...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | Russian |
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Ministry of Justice of the Russian Federation, Russian Federal Centre of Forensic Science
2020-10-01
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| Series: | Теория и практика судебной экспертизы |
| Subjects: | |
| Online Access: | https://www.tipse.ru/jour/article/view/567 |
| _version_ | 1826566179318136832 |
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| author | V. A. Vasil’ev T. A. Ermakova Yu. A. Druzhinin I. B. Afanas’ev T. Yu. Yudina E. Yu. Rusanov |
| author_facet | V. A. Vasil’ev T. A. Ermakova Yu. A. Druzhinin I. B. Afanas’ev T. Yu. Yudina E. Yu. Rusanov |
| author_sort | V. A. Vasil’ev |
| collection | DOAJ |
| description | Problems of detecting sweat and grease deposits on porous surfaces are common for forensic practice, and usually, they are successfully resolved with the help of chemical methods. Meanwhile, the interaction process in the system “porous surface – deposit – chemical agent" concerning clarification and identification of the trends within chemical reaction is not reviewed in literature sufficiently. For more comprehensive research of this process, the authors of the article have conducted multiple experiments on the ninhydrin reaction with the sweat and grease of the deposits, analyzed the interaction of the chemical agent with the sweat and grease, with the properties of porous (paper) materials using electron microscopy, and also looked into the display features of pore and edgeoscopic signs in the deposits under different storage conditions.As a result of the research, it is shown that such parameters of deposits carriers (paper) as porosity and hydrophilic properties and ambient humidity as well as the time of storage have a significant influence on the process of detecting the sweat and grease deposits on porous surfaces and their quality. |
| first_indexed | 2024-04-10T01:00:04Z |
| format | Article |
| id | doaj.art-e6a418496207446f8affc3f77e6da1c0 |
| institution | Directory Open Access Journal |
| issn | 1819-2785 2587-7275 |
| language | Russian |
| last_indexed | 2025-03-14T10:47:32Z |
| publishDate | 2020-10-01 |
| publisher | Ministry of Justice of the Russian Federation, Russian Federal Centre of Forensic Science |
| record_format | Article |
| series | Теория и практика судебной экспертизы |
| spelling | doaj.art-e6a418496207446f8affc3f77e6da1c02025-03-02T10:53:25ZrusMinistry of Justice of the Russian Federation, Russian Federal Centre of Forensic ScienceТеория и практика судебной экспертизы1819-27852587-72752020-10-01153344310.30764/1819-2785-2020-3-34-43532On Some Issues of Handprints Detection and the Mechanism of Trace Formation on Porous SurfacesV. A. Vasil’ev0T. A. Ermakova1Yu. A. Druzhinin2I. B. Afanas’ev3T. Yu. Yudina4E. Yu. Rusanov5Volgograd Academy of the Ministry of Interior of RussiaVolgograd State UniversityForensic Center of the Ministry of Internal Affairs of the Russian FederationThe Russian Federal Centre of Forensic Science of the Ministry of Justice of the Russian FederationForensic Center of the Ministry of Internal Affairs of the Russian FederationIntermunicipal Department of the Ministry of Internal Affairs of Russia “Nizhnetagilskoe”Problems of detecting sweat and grease deposits on porous surfaces are common for forensic practice, and usually, they are successfully resolved with the help of chemical methods. Meanwhile, the interaction process in the system “porous surface – deposit – chemical agent" concerning clarification and identification of the trends within chemical reaction is not reviewed in literature sufficiently. For more comprehensive research of this process, the authors of the article have conducted multiple experiments on the ninhydrin reaction with the sweat and grease of the deposits, analyzed the interaction of the chemical agent with the sweat and grease, with the properties of porous (paper) materials using electron microscopy, and also looked into the display features of pore and edgeoscopic signs in the deposits under different storage conditions.As a result of the research, it is shown that such parameters of deposits carriers (paper) as porosity and hydrophilic properties and ambient humidity as well as the time of storage have a significant influence on the process of detecting the sweat and grease deposits on porous surfaces and their quality.https://www.tipse.ru/jour/article/view/567dactyloscopypapillary patternssweat and grease depositschemical methods of detectionninhydrinpore and edgeoscopic signsporous surfacespaper |
| spellingShingle | V. A. Vasil’ev T. A. Ermakova Yu. A. Druzhinin I. B. Afanas’ev T. Yu. Yudina E. Yu. Rusanov On Some Issues of Handprints Detection and the Mechanism of Trace Formation on Porous Surfaces Теория и практика судебной экспертизы dactyloscopy papillary patterns sweat and grease deposits chemical methods of detection ninhydrin pore and edgeoscopic signs porous surfaces paper |
| title | On Some Issues of Handprints Detection and the Mechanism of Trace Formation on Porous Surfaces |
| title_full | On Some Issues of Handprints Detection and the Mechanism of Trace Formation on Porous Surfaces |
| title_fullStr | On Some Issues of Handprints Detection and the Mechanism of Trace Formation on Porous Surfaces |
| title_full_unstemmed | On Some Issues of Handprints Detection and the Mechanism of Trace Formation on Porous Surfaces |
| title_short | On Some Issues of Handprints Detection and the Mechanism of Trace Formation on Porous Surfaces |
| title_sort | on some issues of handprints detection and the mechanism of trace formation on porous surfaces |
| topic | dactyloscopy papillary patterns sweat and grease deposits chemical methods of detection ninhydrin pore and edgeoscopic signs porous surfaces paper |
| url | https://www.tipse.ru/jour/article/view/567 |
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