Detection of latent fingermarks and cells on paper.

Khuu, A; Spindler, X; Roux, C

Detection of latent fingermarks and cells on paper.

Khuu, A Spindler, X

Roux, C

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Publisher:: ELSEVIER IRELAND LTD
Publication Type:: Journal Article
Citation:: Forensic science international, 2020, 309
Issue Date:: 2020-04

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Field	Value	Language
dc.contributor.author	Khuu, A
dc.contributor.author	Spindler, X https://orcid.org/0000-0001-6379-351X
dc.contributor.author	Roux, C https://orcid.org/0000-0003-3610-420X
dc.date.accessioned	2020-11-19T02:43:40Z
dc.date.available	2020-02-06
dc.date.available	2020-11-19T02:43:40Z
dc.date.issued	2020-04
dc.identifier.citation	Forensic science international, 2020, 309
dc.identifier.issn	0379-0738
dc.identifier.issn	1872-6283
dc.identifier.uri	http://hdl.handle.net/10453/144140
dc.description.abstract	Fingermarks and DNA are valuable traces in forensic investigations potentially allowing for the identification of the source of the trace or highlighting a link between a touched object and an individual. These traces are often latent and need to be detected before recovery. While a number of validated methods exist for fingermark detection, no routine method is in place for the detection of DNA. This study investigates the use of pdimethylaminobenzaldehyde (DMAB) in conjunction with indanedione zinc (IND-Zn) for the detection of latent cellular material and fingermarks on paper. The aim of this proof-of-concept study is to determine the successfulness of this reagent (DMAB-IND) in the detection of the respective traces and observe the impact it has on the resulting DNA profile. It was found that latent fingermarks and the associated cells could be visualised following treatment with the reagent. Samples treated with DMAB-IND showed a significantly higher percentage of alleles called compared to IND-Zn-treated and untreated samples due to the targeted recovery of cells. However, the reagent appears to degrade DNA at a rapid rate, requiring the treated samples to be processed for DNA on the day of treatment.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER IRELAND LTD
dc.relation	Estate of Peter John Bulgin
dc.relation	http://purl.org/au-research/grants/arc/LP160100351
dc.relation.ispartof	Forensic science international
dc.relation.isbasedon	10.1016/j.forsciint.2020.110185
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject.classification	Legal & Forensic Medicine
dc.title	Detection of latent fingermarks and cells on paper.
dc.type	Journal Article
utslib.citation.volume	309
utslib.location.activity	Ireland
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - CFS - Centre for Forensic Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2020-11-19T02:43:37Z
pubs.publication-status	Published
pubs.volume	309

Abstract:

Fingermarks and DNA are valuable traces in forensic investigations potentially allowing for the identification of the source of the trace or highlighting a link between a touched object and an individual. These traces are often latent and need to be detected before recovery. While a number of validated methods exist for fingermark detection, no routine method is in place for the detection of DNA. This study investigates the use of pdimethylaminobenzaldehyde (DMAB) in conjunction with indanedione zinc (IND-Zn) for the detection of latent cellular material and fingermarks on paper. The aim of this proof-of-concept study is to determine the successfulness of this reagent (DMAB-IND) in the detection of the respective traces and observe the impact it has on the resulting DNA profile. It was found that latent fingermarks and the associated cells could be visualised following treatment with the reagent. Samples treated with DMAB-IND showed a significantly higher percentage of alleles called compared to IND-Zn-treated and untreated samples due to the targeted recovery of cells. However, the reagent appears to degrade DNA at a rapid rate, requiring the treated samples to be processed for DNA on the day of treatment.

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http://hdl.handle.net/10453/144140