Sudebno-meditsinskaia ekspertiza
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In this article a practical case is described when gunshot directions and position of a victim's body at the moment of each shot were determined by natural simulation using an LG-78 laser (made in the form of a gun).
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On the basis of equations of external ballistics and probability theory the largest possible distances of free (independent) flight of gunshot powder and metal particles having different forms and sizes were calculated. Experimental control of the calculated data for different types of battle and sports hand fire-arms was carried out. ⋯ In experiments with cartridges equipped with bullets the distances of free particle flight were significantly lesser (by 53-65%) which may be connected with effect of gunshot projectile on the process of particle distribution. Reversed adapted formulas and calculation variants are presented.
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In this article the authors give a scientific evaluation of genetic dactyloscopy method in which the sites of human chromosomal DNA, possessing structural polymorphism, act as genetic markers. Technology of genome "dactyloscopy" including both the series of standard conventional methods and new methods is presented. The method is highly sensitive and requires small amounts of material for investigation. A practical case is described when genome "dactyloscopy" gave positive results which led to a conclusion on suspect's involvement in the crime.