Research Article

Unconventional powder method is a useful technique to determine the latent fingerprint impressions

Harshita Niranjan, Shweta Rai, Kapil Raikwar, Chanchal Kamle and Rakesh Mia*

Published: 23 August, 2022 | Volume 6 - Issue 1 | Pages: 045-048

Background: Fingerprint development techniques are being used for a long time and are considered one among the oldest methods in forensic science used to identify suspects. Fingerprints are one of the most significant types of physical evidence. There are various types of fingerprint patterns such as visible, plastic and latent. In criminal investigation cases, chance fingerprint impressions are mostly found at the crime scene. These prints are generally invisible and therefore require several development methods. The powder dusting technique of developing fingerprints involves the application of fine powder on the impression of the print with the help of a brush such as glass fiber or a camel hair brush. 
Main text: This paper rather focuses on various unconventional powder methods than the widely used conventional ones. This will help identify other cheaper, non-toxic powders that are commonly available as an alternative to the expensive, toxic ones. The author’s main aim is to provide a collective review of the work of other scientists in order to identify everyday materials, commonly available that can be used as possible means to develop a fingerprint impression. 
Conclusion: For a better result, the unconventional powder is used on different surfaces i.e. porous, non-porous, and semi-porous for latent fingerprint impressions. After developing impressions on different surfaces, we conclude our result that unconventional powder is very useful. 

Read Full Article HTML DOI: 10.29328/journal.jfsr.1001035 Cite this Article Read Full Article PDF


Fingerprint; Fingerprint development; Latent fingerprint; Powder method


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