PECULIARITIES OF ADDITIONAL SHOT FACTORS DEPOSITION WHEN FIRING FROM «FORT 9R» AND «FORT 17R» PISTOLS

Abstract

Additional factors of the shot are one of the key pieces of physical evidence that are investigated in the case of a gunshot injury in order to establish the distance and identify the weapon of the shot, as evidenced by the results of numerous scientific works. However, publications related to the study of non-lethal firearms are isolated cases and incomplete both in the world and in the domestic scientific literature. The purpose of the work is to investigate the deposition of additional factors of the shot on different cover materials and bare blocks, which are imitating the tissues of the human body at different shot distances, using «Fort 9R» and «Fort 17R» pistols. Material and methods. In order to achieve the goal, 120 gelatin blocks covered with different fabrics or left without a coating were fired. The shooting was carried out using «Fort 9R» and «Fort 17R» pistols. The fired blocks were examined for the presence of soot using a descriptive method and microscopic examination, and subsequently using a chromatographic-mass spectrometric method of examination and infrared microscopy on a combined IR-Fourier spectrometer in order to detect diphenylamine and centralite. Results. When shooting from «Fort 9R» and «Fort 17R», the deposition of soot was observed at a distance of a shot at close range and 25 cm on all studied blocks, and also  when shooting from «Fort 17R» on blocks covered with cotton fabric and in bare blocks, soot was detected microscopically on shot distance 50 cm; diphenylamine and centralite was observed when firing from «Fort 9R» in bare blocks (close and 25 cm) and blocks covered with leatherette (25 cm), while when firing from «Fort 17R» it was detected only at a shot distance of 25 cm on blocks covered with denim fabric. Conclusions. The presence of clothing and the peculiarities of the material of its manufacture fundamentally change the macro, microscopic and laboratory picture of the deposition of additional factors of the shot at different distances, using the «Fort 9R» and «Fort 17R» pistols, with the exception of the soot deposition when firing from the «Fort 9R» pistol.