Kazakova S.E., Solovyeva N.A. Modern Modification of Adsorption-Luminescence Method in Forensic Technical Expertise of Documentation
MODERN MODIFICATION OF ADSORPTION-LUMINESCENCE METHOD IN FORENSIC TECHNICAL EXPERTISE OF DOCUMENTATION
Svetlana Evgenyevna Kazakova
Candidate of Juridical Sciences, Associate Professor, Department of Documentary Research,
Volgograd Academy of the Ministry of Internal Affairs of Russia
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Istoricheskaya St., 130, 400036 Volgograd, Russian Federation
Natalya Alekseevna Solovyeva
Candidate of Juridical Sciences, Associate Professor,
Head of Department of Criminal Procedure and Criminalistics,
Volgograd State University
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Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation
Abstract. Expert practice suggests that the materials and instruments of writing are the most frequent objects of technical and forensic expertise of documentation. To replace the previously common means of writing other more sophisticated appeared recently requiring new methods of investigation. The most effective methods include microscopy, shooting in different ranges of the spectrum, adsorption-luminescence method, etc. These methods when applied to objects of technical and forensic documents examination allow to solve a wide range of problems, mostly of a diagnostic nature.
With this in mind the following tasks were addressed in the work:
1. Systematic classification of photo paper for inkjet printing, depending on its density and, consequently, chemical composition of the base coating.
2. The effect of the density of the paper on clarity and color saturation of the resulting replicas of the studied records.
3. The dependence of the type and degree of luminescence on paper density.
The authors selected the optimal combination of paper and solvent – wet method for copying ink of a fountain pen, ballpoint pen pastes, ink stamp and ink, often used to perform handwritten records and prints seals and stamps.
The results demonstrate the need for further study of this issue, especially because as long as there are securities, they will always be subject to attacks of criminals trying to change their original content.
Key words: adsorption-luminescent method of investigation, photographic paper, digital printing, inkjet printing, properties of photographic paper.
MODERN MODIFICATION OF ADSORPTION-LUMINESCENCE METHOD IN FORENSIC TECHNICAL EXPERTISE OF DOCUMENTATION by Kazakova S.E., Solovyeva N.A. is licensed under a Creative Commons Attribution 4.0 International License.
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