Fundamentals of mechanoscopic examination of traces of dot peen marking
Introduction. Due to the criterion of recoverability, the dot peen marking is widely used as a protective one for such products as, for example, fi rearms or locking and sealing devices. However, in forensics, the possibilities of establishing the commonality of origin of such markings and identifi cation of specifi c equipment have not been investigated. Theoretical analysis. To solve these expert problems, a proven approach was chosen, which consists in studying the constructive and technological properties of dot peen markers as objects of forensic research. Empirical analysis. In the real production cycle of serial sealing devices, markings were made on 20 Pinstamp TMP1700 markings installation. In total, more than 90 products of several model ranges were examined. The main attention was paid to the display of group features of the image program (template); display of individual signs of a particular installation and stability of feature display. Comparative analysis showed that in the marking traces there is a complex of stably displayed group and individual signs of the technological installation. Results. The study of the identifi ed complex of features allows you to establish the production origin of the dot peen marking, the software settings of the template and individualize a specifi c marking installation.
- Kudinova N. S. Forensic Mechanoscopic Examination of Production and Technological Traces of Laser Dimensional Processing and Marking. Diss. Cand. Sci. (Jur.) Saratov, 2006. 220 p. (in Russian).
- Belyaev M. V., Filimonov A. V. Especially the study of markings for the locking and sealing devices caused ighodaro installation. Criminal Procedure: Problems of Theory and Practice, 2019, no. 1, pp. 22–28 (in Russian).
- Sukharev A. G. Firearm marking methods that meet forensic requirements. Bulletin of Criminalistics, 2008, no. 2 (26), pp. 97–103 (in Russian).
- Katalog: oborudovanie dlia markirovki (Catalogue: Marking equipment). Available at: https://www.itmash.ru/katalog/oborudovanie-dlja-markirovki-markirujushchee (accessed 6 July 2021) (in Russian).
- Igloudarnye markirovshchiki (Dot peen marking installations). Available at: http://www.marking.lv/RUIgloudarnije_markirovshiki.xhtml (accessed 4 March 2021) (in Russian).
- Monin A. G., Sukharev A. G., Filimonov A. V., Kondakov A. V., Vasil’ev V. A. Modern stenciling matrix machines and their identifi cation. Forensic Examination, 2017, no. 1 (49), pp. 57–66 (in Russian).