Application of judgment with ATR FTIR in differentiation of forgery document

Title
Application of judgment with ATR FTIR in differentiation of forgery document
Authors
남윤식이강봉
Keywords
forensic science; ball point pen; ATR-FTIR; questioned document
Issue Date
2012-10
Publisher
화학세계
Abstract
Ballpoint pen ink signatures on questioned documents were studied to investigate the feasibility of micro-Attenuated Total Reflectance (ATR) FTIR spectroscopy as a tool in the forensic study. Micro-ATR FTIR spectra for signatures written with 63 ballpoint pens available commercially in Korea were collected. The technique was able to differentiate black ballpoint pen inks of different models or manufacturers. Blind testing for the ballpoint pen signatures has shown that micro-ATR FTIR can identify the origin of ballpoint pen ink used for signature with accuracy. Data gathered were converted to a spectral database for future reference or library. Also, the technique was also successful in determining the sequence of homogeneous line intersection from line crossing of two ballpoint pen signatures. The results show that micro-ATR FTIR can be a valuable non-destructive tool for the objective analysis of questioned documents involved ballpoint pen ink signature
URI
http://pubs.kist.re.kr/handle/201004/43260
ISSN
1225004X
Appears in Collections:
KIST Publication > Conference Paper
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