The Effect of Different Acetone Grade on Quality of Latent Fingerprint Developed Using Ninhydrin Technique

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Sittipol Tangtrongsit
Pairoa Praihirunkit
Kanyanath Piumngam

Abstract

The purpose of this research is to compare the quality of latent fingerprints developed by Ninhydrin technique in 5 different grades of acetone namely ACS Grade (standard Grade), AR Grade, Laboratory Grade, Purified Grade and Commercial Grade on 2 porous surfaces. Also, this study aims to compare the duration of the persistence of fingerprints that appear after the test with the Ninhydrin technique in different acetone grades. This research is an experimental research using 2 types of analysis: statistical analysis and quality degree analysis. The findings reveal that the quality of the fingerprint can be detected with no statistically significant (p = .05) under the use of different grades of acetone on the samples of notebook and A4 paper. In addition, the quality of latent fingerprints taken from the volunteers using standard grade acetone (ACS Grade) compared with commercial Grade is not statistically significant different. This study, therefore, concludes that the quality of latent fingerprints detected using the different grades of acetone is not varied.

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How to Cite
Tangtrongsit, S., Praihirunkit, P., & Piumngam, K. (2021). The Effect of Different Acetone Grade on Quality of Latent Fingerprint Developed Using Ninhydrin Technique. Journal of Criminology and Forensic Science, 7(1), 89-105. Retrieved from https://so02.tci-thaijo.org/index.php/forensic/article/view/245366
Section
Research Articles

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