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Marble industry produces large amount of marble slurry. Home flooring & furniture processing stages are also produces slurry. This waste
is dumped on the open land creates a lots of environmental problem so the use of this waste marble slurry powdered to developed latent
fingerprints & solved crime. This waste powder is easily available on the cons...
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Context 1
... research study shows twelve samples of invisible fingerprints which are positively developed in various porous or nonporous surfaces in the help of marble slurry dust. Pattern and ridge characteristics are clearly observable and easily identified the fingerprint pattern and their ridge features can be seen in Figures 1-10. Identified & Examination of invisible fingerprints patterns can be positively developed with marble slurry dust. The relative approximation of different area this marble slurry dust discloses that it provides well results on contrast surfaces rather than the others powders examine. This research study, based on the invisible fingerprint, is a physical technique based on the adherence of fingerprint powder (dust) attached with fatty acid & oily component present on the sweat are deposit on the fingerprints and ridges. The Developed successful results of these ten samples i.e. Paper, Plywood, Plastic box, Porous Plastic Surface, Porous wooden Surface, Iron, Nonstick Utensil, Leather, Porous Umbrella cloth, Stainless Steel are given below. ...
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Latent fingerprints are biometric features that represent one of the most common evidence that can be used for human identification at a crime scene. The selection of an enhancement technique for visualization of fingerprints depends on a number of factors including the type of substrate and the location/environment of the fingerprint. The most com...
Citations
... Contra-coloured powders were applied with the help of an ostrich hair brush on all 20 samples. Powder residues mechanically attached to ridges' sweat residues [17][18][19]. The powder was sprinkled/dusted over a surface and the print was gently brushed using an ostrich hair brush and softly removed the excess powder left on the surface of development. ...
Fingerprints is an important field of research in forensics. Because of its uniqueness and distinctiveness, a
fingerprint becomes a person’s identity. Experts have devised a number of ways for detecting latent fin-
gerprints on crime scenes. This research study is based on the effects and extent of destruction of latent
fingerprints using various lubricants, liquids, and solutions. For this study, 20 samples of various liquids
and solutions were collected. Latent fingerprints were taken from 10 individuals on a white paper. These
prints were treated with different lubricants, liquids, and solutions by spraying, spilling or submerging
the paper. Each sample was dried and the fingerprint was developed with a powder method. This study
shows that the type of lubricant or liquid affects the quality of fingerprints developed. In some cases like
sanitizer, room fresheners, and other sprays and concentrated phenyl it was noticed that it completely
destroyed the latent fingerprints, and in some cases; milk, saliva, tap water, etc results show that it is pos-
sible to develop high-quality prints. So, if any paper is recovered from a crime scene in this way then
latent prints can be developed from these surfaces. Fingerprints can be obtained from surfaces treated
with various liquids, lubricants, especially from milk, tea, coffee, tap water produced high-quality prints
which can be analyzed for identification of a person. Future aspects can be so that substances that had
destructive effects on the print can be tested for other techniques of development of fingerprints includ-
ing other factors as well like different porous and non-porous surfaces, environmental effects on these.
Because these liquids are a loophole as they are destructive for latent prints.
... Singh et al. [53] introduced waste marble slurry powder as a fingerprint developing material on various porous as well as non-porous surfaces. The material consists of 99% calcium carbonate [54]. ...
The fingerprint development technique is one of the oldest methods used in forensic science and is a common method of identifying perpetrators. Powder dusting is a popular method for detecting latent fingerprints. Our immediate need is to identify a cheap, non-toxic, commonly available powder as an alternative to expensive, toxic, complicated powders. The goal of this review is to compile the research works done by various experts to identify commonly available, everyday materials as fingerprint powders. The authors have discussed sixty four of such materials from various categories such as food powders, plant materials, minerals, cosmetics, carbon-based materials, and miscellaneous powders. Also they have summarized the key points of the articles that have been published in the context of the goal. Among the various everyday used powders, turmeric powder was identified as a promising material for the detection of latent fingerprints. The effectiveness of white cement, silica gel G, gram flour, etc. was also impressive. Chilli-based powders have been reported to be poor fingerprint powders. Luminescent carbon dots are fascinating newcomers to this field but they have not yet been investigated as a dedicated fingerprint powder. This area provides ample opportunity for researchers to explore the ability of various commonly available, non-toxic and inexpensive, everyday materials to be applied as non-conventional fingerprint powders.
Fingerprints are the friction ridges found on the fingers and palms of the hands. These prints are considered the most valuable
evidence in the court of law as these ridges provide uniqueness to every individual. Powder dusting is one of the prevalent
approaches to developing fingerprints on various surfaces. This involves the application of finely formulated powders on the
fingermark impression using a camel hair brush. in this article, we have used organic household waste materials like rose and
hibiscus petals for developing the powders used in latent fingerprints development. The particle of powder gets adhered to sweat
and moisture deposited on the surface of fingers, palm, and sole, which provide effective visualization and give the fingerprint
details (minutiae). Finally, the formulation of the powder sticks to the ridges, and the excess powder is blown away. The powder is multicolored in this case, the patterns are apparent, resulting in an exceptional outcome. The objective of the study is to
provide a replacement to the conventional, expensive and toxic laboratory powders. These organic powders are easily available,
eco-friendly, cost-effective and non-toxic approach for latent fingerprint development and is a reliable technique to use at crime
scene and future use.
