Capabilities of using a multifunctional led device in the study of objects of forensic examination

Palchikova I.G.; Smirnov E.S.; Latyshov I.V.; Vasilyev V.A.; Kondakov A.V.

doi:https://doi.org/10.17116/sudmed20226503124

Palchikova I.G.

Design and Technology Institute of Scientific Instrumentation — Siberian Branch of the Russian Academy of Sciences

Smirnov E.S.

Design and Technology Institute of Scientific Instrumentation — Siberian Branch of the Russian Academy of Sciences

Latyshov I.V.

St. Petersburg University of the Ministry of Internal Affairs of Russia

Vasilyev V.A.

Institute of Gene Biology of the Russian Academy of Sciences

ORCID: 0000-0003-2786-3327

Kondakov A.V.

St. Petersburg Academy of the Investigative Committee of the Russian Federation

Capabilities of using a multifunctional led device in the study of objects of forensic examination

Authors:

Palchikova I.G., Smirnov E.S., Latyshov I.V., Vasilyev V.A., Kondakov A.V.

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Journal: Forensic Medical Expertise. 2022;65(3): 24‑29

DOI: 10.17116/sudmed20226503124

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To cite this article:

Palchikova IG, Smirnov ES, Latyshov IV, Vasilyev VA, Kondakov AV. Capabilities of using a multifunctional led device in the study of objects of forensic examination. Forensic Medical Expertise. 2022;65(3):24‑29. (In Russ.)
https://doi.org/10.17116/sudmed20226503124

Подписка 2026 Судебно-медицинская экспертиза (Forensic Medical Expertise)

Использование инфографики авторами научных работ

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Abstract:

The purpose of the work is to determine the capabilities of the modern multifunctional device «Photobox 3138» with LED illuminators with a high color rendering index for photofixation, colorimetric, spectrozonal and multispectral analyzes of forensic objects. The competencies of the «Photobox 3138» 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 3138» allows you to solve a variety of diagnostic tasks related to the search, visualization, fixation and analysis of trace information.

Keywords:

LED lighting device

high color rendering index

forensic objects

multispectral analysis

Authors:

Palchikova I.G.

Design and Technology Institute of Scientific Instrumentation — Siberian Branch of the Russian Academy of Sciences

Smirnov E.S.

Design and Technology Institute of Scientific Instrumentation — Siberian Branch of the Russian Academy of Sciences

Latyshov I.V.

St. Petersburg University of the Ministry of Internal Affairs of Russia

Vasilyev V.A.

Institute of Gene Biology of the Russian Academy of Sciences

ORCID: 0000-0003-2786-3327

Kondakov A.V.

St. Petersburg Academy of the Investigative Committee of the Russian Federation

Received:

13.09.2021

Accepted:

06.10.2021

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References:

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