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Much information can be obtained from the chemical composition of a fingermark, which can be helpful in crime scene investigation. Immunolabeling can be used to extract information about the donor of the fingermark and it can also act as a fingermark development tool in sequence with the standard fingermark development techniques. However, before immunolabeling can be used in forensic practice more information on the possibilities and limitations of this technique is required. In this study, our aim was to investigate if immunolabeling is compatible with standard development protocols (indanedione-zinc, indanedione-zinc followed by ninhydrin spraying, physical developer, cyanoacrylate fuming, cyanoacrylate followed by basic yellow staining, lumicyanoacrylate fuming and polycyanoacrylate fuming). Immunolabeling was carried out successfully on all developed fingermarks, whereby dermcidin was selected as antigen of interest. We can conclude that immunolabeling is compatible with a wide variety of different fingermark developers. This finding in combination with previous findings, makes immunolabeling an interesting technique, which can be of great value in the forensic field.
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http://dx.doi.org/10.1016/j.scijus.2014.06.005 | DOI Listing |
J Forensic Sci
September 2025
Department of Forensic Science, Punjabi University, Patiala, Punjab, India.
Adhesive tapes are often a subject of forensic examinations as they are frequently encountered in a variety of cases involving drugs of abuse, bombings, homicides, kidnappings, robberies, or sexual assaults. The analytical characterization of such adhesive tape evidence can be useful for assessing potential contact between the suspect, the victim, and/or the crime scene. However, adhesive tapes frequently serve as substrates for fingermarks, and the examination of these impressions takes precedence over the characterization of the tape due to the higher evidentiary value associated with fingermarks.
View Article and Find Full Text PDFForensic Sci Res
September 2025
Department of Police Practice, University of South Africa, Pretoria, South Africa.
The ability to develop latent fingermarks from fired and unfired cartridge cases can be crucial in resolving crime cases and advancing forensic investigations. Currently, there is a lack of consensus on the ideal technique to employ for the enhancement of latent fingermarks from fired and unfired cartridge cases. This review therefore aims to explore techniques and methods employed to develop latent fingermarks from fired and unfired cartridge cases.
View Article and Find Full Text PDFForensic Sci Int
August 2025
Forensic Evidence & Technical Services Command, NSW Police Force, NSW, Australia.
Physical developer (PD) is a physicochemical detection technique for fingermarks on porous surfaces. One of the surfactants in PD, Synperonic® N, has been phased out of manufacture due to generating environmentally harmful degradation products. Previous research, mainly in the US, the UK, and Europe, has attempted to trial alternatives to Synperonic® N, such as Tween® 20 and DGME, however little comparative work has taken place in an Australian context.
View Article and Find Full Text PDFAnal Methods
August 2025
People's Public Security University of China, Beijing, 100038, People's Republic of China.
Chemical residues in fingermarks have been proven to assist in suspect tracing and population profiling. However, the composition and levels of these chemicals are derived from complex metabolic systems and are easily influenced by biological activities, which has hindered judicial institutions worldwide from establishing standardized analytical procedures. To develop a rapid, accurate, and straightforward analytical method, this study employed UPLC-QqQ-MS/MS to quantify amino acid levels in fingermark residues, integrating machine learning techniques and intelligent optimization algorithms for gender prediction.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Applied Immunology and Morphology Research Centre, NuPMIA, Morphology Area, Faculty of Medicine, University of Brasília, UnB, Brasília, Distrito Federal, Brazil. Electronic address:
The combination of cashew gum (GC) and curcumin (Cur) was explored in the production of Ag nanoparticles (AgNps) by green synthesis, for the development of a fingerprint marker. For this, GC (0.5 % w/v) was added to an aqueous solution of AgNO₃, with and without Cur (1/1).
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