Human scent signature on cartridge case survives gun being fired: A preliminary study on a potential of scent residues as an identification tool

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F23%3A43925929" target="_blank" >RIV/60461373:22340/23:43925929 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0283259" target="_blank" >https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0283259</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1371/journal.pone.0283259" target="_blank" >10.1371/journal.pone.0283259</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Human scent signature on cartridge case survives gun being fired: A preliminary study on a potential of scent residues as an identification tool

Popis výsledku v původním jazyce

This paper focuses on a chemical analysis of human scent samples that were obtained from cartridge cases after being fired and their comparison with scent samples collected under laboratory conditions. Scent samples were analyzed by comprehensive two-dimensional gas chromatography coupled with the time-of-flight mass spectrometer. The results obtained from the chemical analyzes confirmed the desired stability of the human scent evidence and outlined the possible application for forensic purposes. The qualitative results of the study converge with the findings of previous studies on the composition of human scent and the chemical composition of human fingerprints. Furthermore, statistical analyzes were performed employing similarity algorithms such as Pearson’s and Spearman’s correlations, or Kendall’s tau. The resulting comparison of the scent samples secured on fired cartridge cases compared with those samples collected under laboratory conditions yielded ten out of ten correct identifications of the scent inflictor.

Název v anglickém jazyce

Human scent signature on cartridge case survives gun being fired: A preliminary study on a potential of scent residues as an identification tool

Popis výsledku anglicky

This paper focuses on a chemical analysis of human scent samples that were obtained from cartridge cases after being fired and their comparison with scent samples collected under laboratory conditions. Scent samples were analyzed by comprehensive two-dimensional gas chromatography coupled with the time-of-flight mass spectrometer. The results obtained from the chemical analyzes confirmed the desired stability of the human scent evidence and outlined the possible application for forensic purposes. The qualitative results of the study converge with the findings of previous studies on the composition of human scent and the chemical composition of human fingerprints. Furthermore, statistical analyzes were performed employing similarity algorithms such as Pearson’s and Spearman’s correlations, or Kendall’s tau. The resulting comparison of the scent samples secured on fired cartridge cases compared with those samples collected under laboratory conditions yielded ten out of ten correct identifications of the scent inflictor.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/VJ01010123" target="_blank" >VJ01010123: Identifikace pachatele pomocí forenzní analýzy pachových a dotykových stop zajištěných na místě činu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Plos One

ISSN

1932-6203

e-ISSN

1932-6203

Svazek periodika

18

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

—

Kód UT WoS článku

000970044200044

EID výsledku v databázi Scopus

2-s2.0-85150701203