[Capabilities of using a multifunctional led device in the study of objects of forensic examination]. / Vozmozhnosti ispol'zovaniya mnogofunktsional'nogo svetodiodnogo pribora v issledovanii ob"ektov sudebnykh ekspertiz.

The purpose of the work is to determine the capabilities of the modern multifunctional device «Photobox 3138¼ with LED illuminators with a high color rendering index for photofixation, colorimetric, spectrozonal and multispectral analyzes of forensic objects. The competencies of the «Photobox 3138¼ device were experimentally revealed in terms of visualization and photofixation of both traces of biological origin (blood, sweat fat, saliva, etc.) and traces of traditional examinations, including shot products, oil products. The design of the device with a working field of 300×300 mm provides for the optimal arrangement of LED illuminators, including white light with a high color rendering index; spectrum-zonal illuminator with 4 types of LEDs with narrow non-intersecting spectral lines (458.1; 523.1; 594.1 and 630.6 nm) in the visible range of the spectrum; UV- (370 nm) and IR- (850 nm) illuminators. The fundamental possibility of using the resulting digital images of forensic objects for subsequent mathematical processing is experimentally shown. Images taken in different spectral ranges help to detect traces and damage. It was found that «Photobox 3138¼ allows you to solve a variety of diagnostic tasks related to the search, visualization, fixation and analysis of trace information.