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[a] Experimental setup with recommended chemicals published by Xu et al.; Reproduced by our research group [b] high-contrast and high-resolution images of fingerprints based on the method described by Xu et al.
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![Fig. 1: [a] Experimental setup with recommended chemicals published by...](profile/Tommy-Bergmann/publication/344948151/figure/fig1/AS:1176958046085123@1657620073709/a-Experimental-setup-with-recommended-chemicals-published-by-Xu-et-al-Reproduced-by_Q320.jpg)
![Fig. 2: [a] Overview of the components, [b] construction sketch...](profile/Tommy-Bergmann/publication/344948151/figure/fig2/AS:1176958046093314@1657620073830/a-Overview-of-the-components-b-construction-sketch-cross-section-and-c-structured_Q320.jpg)
Fingerprint analysis played a major role in the investigation of criminal offences for the past 100
years and is often the sole means of criminal identification [YA04]. Electrochemical analysis can
yield important additional evidence like fingerprint age, biological age and gender of its creator
as well as chemical adhesives [GRW12]. Additional gai...
Context in source publication
Context 1
... reactivity and surface exit work of fingerprints. It is of special interest to reach a resolution which makes pores visible as demonstrated by Xu et al. [Xu12]. We could reproduce this high quality images using their recommended chemicals (tris(2,2'-bipyridyl) ruthenium(II) ([Ru(bpy)3]2+) and tri-n-propylamine (TPrA) as illustrated in Fig. 1. All minutiae (islands, inclusions, branches, bridges, etc.), even sweat pores within the papillary ridges, are clearly visible. However the high price and poor availability of the used ruthenium-solution leads to the demand for alternatives. The use of luminol to make blood evidence visible with the help of a catalyst has been a ...
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Latent fingerprints (LFPs) is one of the most important physical evidence in the criminal scene, playing an important role in forensic investigations. Therefore, developing highly sensitive and convenient materials for the visualization of LFP is of great significance. We designed and synthesized an organic fluorescent molecule TP-PH with aggregati...
Citations
... These developed solutions culminated in the creation of an initial integrated solution comprising a modified camera and electrolytic cell, capable of implementing the desired functionalities. The high-contrast, high-resolution photos generated through this method could already be examined in the prototype using suitable image processing and evaluation programs (Figure 4) [14]. ...
In the realm of forensic science, the analysis and visualization of data and traces rely heavily on the interpretation of colors. This chapter delves into the multifaceted role colors play in forensic investigations, exploring their significance in various domains, such as bloodstain analysis, fingerprint examination, image forensics, and the study of artificial light sources. From discerning the age of bloodstains to identifying manipulated digital images, color analysis emerges as a pivotal tool in unraveling crime events and establishing facts crucial for legal proceedings. Through a discussion of selected forensic methods, this chapter highlights the diverse applications of color analysis and emphasizes the need for standardized approaches to ensure the accuracy and reliability of forensic investigations. Looking ahead, the continuous advancement of technologies and methodologies in color analysis promises to enhance further the efficacy of forensic science in solving crimes.
