Elemental composition of hair as a marker for forensic human identification


Mussabekova S.A. Mkhitaryan X.E.
July 2021Churchill Livingstone

Journal of Forensic and Legal Medicine
2021#81

Background: Hair is one of the most common evidence types found in criminal investigations. Analysis of human hair reveals the mineral composition accumulated within it over time spent in a specific area, thereby providing additional information for forensic identification. Materials and methods: To identify patterns of the elemental composition of hair in territories with different natural and anthropogenic features, hair samples of 1238 residents and 217 corpses of Central Kazakhstan were studied. The determination of 14 chemical elements in hair by inductively coupled plasma atomic emission spectrometry were presented. The data were analysed in terms of place of residence, gender, age and condition. Results: The results showed that the concentration of trace elements like Cu, Fe, Cd, and As significantly differed among all regions (p < 0.05). The composition of hair samples obtained from women significantly differed from those obtained from men for certain major and trace elements (p < 0.05). Concentrations of Ca and Mg in men were significantly lower than in women (p < 0.05) and were decreasing with age (p < 0.05). Conclusions: The present investigation revealed a relationship between the elemental composition of hair and the place of permanent residence of a person, formed under the influence of regional industrial complexes, and determining gender and age-related differences. These findings enhance the possibilities of forensic human identification.

Diagnostic feature , Forensic medical examination , Hair , Human identification , Inductively coupled plasma atomic emission spectrometry , Trace elements

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Department of Pathology, Karaganda Medical University, Karaganda, Kazakhstan, 60-59 Yermekova str., Karaganda, 100009, Kazakhstan
Department of Informatics and Biostatistics, Karaganda Medical University, Karaganda, Kazakhstan, 54-33 Krylova str., Karaganda, 100019, Kazakhstan

Department of Pathology
Department of Informatics and Biostatistics

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