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Documents |
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| NCJ Number:
|
NCJ 204667
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| Title:
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Research on Transferring a Fingerprint to a Ninhydrin-Treated Document
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| Journal:
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Journal of Forensic Identification Volume:54 Issue:2 Dated:March/April 2004 Pages:178 to 184
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| Author(s):
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Alexandre Beaudoin
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| Publisher Url*:
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http://www.theiai.org |
| Publication Date:
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03/2004 |
| Pages:
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7 |
| Type:
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Studies/research reports |
| Origin:
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United States |
| Language:
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English |
| Annotation:
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This article discusses whether it was possible to transfer someone’s prints onto a document that had been previously treated with ninhydrin. |
| Abstract:
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Ninhydrin is used worldwide by police departments to enhance fingerprints. This study used two different surfaces on which to deposit fingerprints: a plastic ziplock bag and a stainless steel table. The sticky side of a lifter was put onto paper and gently removed, without tearing the paper. For the ninhydrin-treated tests, the ninhydrin was applied with a sprayer. Two samples without any fingerprints and two samples with fingerprints were treated using the same procedures as were used on the other samples. Following these experiments, it was observed that a print lifted and transferred onto the untreated paper gave negative results. The same experiment was performed on paper still wet with ninhydrin, with negative results. The same two experiments were done using paper that had been previously treated with ninhydrin, with negative results. It is a well-known fact that one must maintain great vigilance following ninhydrin treatments. Ninhydrin remains active a very long time. Fingerprints placed upon a document after the treatment will eventually show up. It is evident from this study that the secondary transfer of prints (transferring the print using a lifter or pressing a smooth surface) to ninhydrin-treated paper is very unlikely. 5 references |
| Main Term(s):
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Investigative techniques ; Fingerprint image quality |
| Index Term(s):
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Crime laboratories ; Fingerprints ; Crime scene search ; Latent fingerprints ; Fingerprint age ; Fingerprint detection techniques |
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To cite this abstract, use the following link:
http://www.ncjrs.gov/App/Publications/abstract.aspx?ID=204667
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