The transfer and persistence of metals in latent fingermarks

Abstract

In forensic science, knowledge and understanding of material transfer and persistence is inherent to the interpretation of trace evidence and can provide vital information on the activity level surrounding a...

Innovative Vibrational Spectroscopy Research for Forensic Application

“…To visualize metal ions in latent FMs with a spatial resolution at the micron level, Boseley et al demonstrated the capability of synchrotron-sourced X-ray fluorescence microscopy and IR microspectroscopy. 262 This allowed them to determine the distribution of metal ions in FM samples. It was determined that metal content can be easily transferred to and removed from FMs.…”

“…Additionally, this method has endless potential to be used for other forms of trace contamination of FMs: explosives, GSR, cosmetics, etc. To visualize metal ions in latent FMs with a spatial resolution at the micron level, Boseley et al demonstrated the capability of synchrotron-sourced X-ray fluorescence microscopy and IR microspectroscopy . This allowed them to determine the distribution of metal ions in FM samples.…”

Interpol review of fingermarks and other body impressions (2019 – 2022)

“…Metal traces – The transfer and persistence of metals in fingermarks has been investigated by Boseley et al, using XFM [ 198 ]. Considering different scenarios, the authors showed that the handling of the following items led to an increase of metal traces along the fingermark ridges: (1) for a gun barrel: iron and lead – heterogeneously distributed, (2) for a brass cartridge case: copper, and zinc – homogeneously distributed, (3) for a party sparkler: iron, cobalt, nickel, bromine, and barium.…”

Toward multidimensional information: A derivatization‐free UHPLC‐QqQ MS/MS method for amino acid components of fingerprint

“…and metals [3], which have been extensively studied. However, there has been little research on the potential of analyzing the amino acid composition in latent fingerprint deposition.…”

“…Alcohol consumption of over 15 units within 24 h prior to fingerprint deposition resulted in higher proline concentrations in both eccrine-rich and natural fingerprints [11]. MDMA (3,4-methylenedioxy-n-methylamphetamine) inhibits tyrosine hydroxylase activity [12]. MDMA consumption within the past 24 h resulted in 38.5% higher tyrosine levels in fingerprints.…”