PECULIARITIES OF SOOT DEPOSITION, TEARING OF CLOTHING AND HUMAN BODY SIMULATOR DURING SHOOTINGS FROM «FORT 12R» AND «AE 790G1» PISTOLS

Abstract

The study of macroscopic features of the clothing damage or the damage to the human body, the presence of additional factors of a shot on it – is one of the basic methods of analysis used in medical forensics. The appearance of new types of firearms requires the appropriate conduct of experimental research in order to update the theoretical database of experts.
 The purpose of the work to investigate the features of soot deposition, tearing of clothing and a human body simulator when using «FORT 12R» and «AE 790G1» pistols.
 Material and methods. For the study, 120 gelatin blocks were used, which later remained bare or were covered with one of the fabrics: cotton, denim or leatherette. After that, shots were fired from close range, 25 and 50 cm using «FORT 12R» and «AE 790G1» pistols, with subsequent analysis of macroscopic soot deposition around the entrance firing hole and the number of ruptures in clothing or a human body simulator, if the shot was fired at a bare block.
 Results. When analyzing soot deposition, it was reliably established (p<0.0070) or a tendency (p=0.0763, only for leatherette) towards its macroscopic detection when shots were fired at close range in all studied groups of bare blocks and blocks covered with clothing when shots were fired from a distance of 25 cm and the absence of the soot when fired from a distance of 50 cm when fired from both pistols. When comparing the data on the number of ruptures between the «Fort 12R» and «AE 790G1» pistols, reliably (p<0.01-0.05) higher values were found when firing with the «AE 790G1» from a close distance into blocks covered with cotton and denim fabric, when shot from 25 cm into the blocks covered with cotton fabric and a slight tendency (p=0.095) to higher values when shot with the «AE 790G1» from a close distance into the blocks covered with leatherette.
 Conclusions. When using the «FORT 12R» and «AE 790G1» pistols, practically no differences in soot deposition was found, however, when analyzing the number of ruptures in clothing and the human body simulator, higher values were found when using the «AE 790G1» pistol.