The occurrence of contact traces of blood during medical and forensic examinations

Nagornov M.N.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

ORCID: 0000-0001-5077-2090

Leonova E.N.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

ORCID: 0000-0003-0152-3113

Lomakin Yu.V.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

ORCID: 0000-0002-6707-0260

Kalinin R.V.

North-West branch of Forensic Expert Center of the Investigative Committee of the Russian Federation

ORCID: 0000-0001-5863-0564

Selyanina K.P.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

Nagimullina D.I.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

ORCID: 0000-0002-5119-7304

The occurrence of contact traces of blood during medical and forensic examinations

Authors:

Nagornov M.N., Leonova E.N., Lomakin Yu.V., Kalinin R.V., Selyanina K.P., Nagimullina D.I.

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Journal: Forensic Medical Expertise. 2023;66(1): 23‑27

DOI: 10.17116/sudmed20236601123

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To cite this article:

Nagornov MN, Leonova EN, Lomakin YuV, Kalinin RV, Selyanina KP, Nagimullina DI. The occurrence of contact traces of blood during medical and forensic examinations. Forensic Medical Expertise. 2023;66(1):23‑27. (In Russ.)
https://doi.org/10.17116/sudmed20236601123

Подписка 2025-2 (Forensic Medical Expertise)

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The purpose of the study is a theoretical analysis of the available types of contact traces of blood and the establishment of their occurrence at the objects of medical and forensic examinations. Contact marks are formed as a result of the mechanical interaction of two objects, one of which is stained with blood. The literature data allow us to distinguish several types of contact traces of blood: impressions, smears, smearing, «voids», traces in the form of changes in the existing stain from wiping, washing, traces-artifacts from insects. Each type has a mechanism of formation and characteristic features. We analyzed 107 archival medical and forensic examinations. In the examinations in which the material situation of the scene of the incident (5 or more objects) is maximally represented, contact traces were present in 76% of the examinations, which indicates a high occurrence. The following types of contact traces of blood were the most common: smears (29% of all examinations), smearing (22.4%) and «voids» (10.3%). Other types of contact traces were less common.

Keywords:

forensic medical examination

traces of blood

contact traces of blood

impressions

smears

smearing

voids

traces-artifacts from insects

Authors:

Nagornov M.N.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

ORCID: 0000-0001-5077-2090

Leonova E.N.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

ORCID: 0000-0003-0152-3113

Lomakin Yu.V.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

ORCID: 0000-0002-6707-0260

Kalinin R.V.

North-West branch of Forensic Expert Center of the Investigative Committee of the Russian Federation

ORCID: 0000-0001-5863-0564

Selyanina K.P.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

Nagimullina D.I.

I.M. Sechenov First Moscow State Medical University (Sechenov University)

ORCID: 0000-0002-5119-7304

Received:

01.07.2022

Accepted:

27.07.2022

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