Different types of inks having certain medicolegal importance: Deciphering the faded and physically erased handwriting

Abd-ElZaher, Manal

doi:10.1016/j.ejfs.2013.09.002

Cited by 9 publications

(13 citation statements)

References 7 publications

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“…"Kaybolan mürekkep" ve "silinebilir mürekkep" ile oluşturulmuş el yazılarının ortaya çıkarılmasını karşılaştırıldığı bir çalışmada; oblik aydınlatma ile kağıt yüzeyinde oluşmuş girintilerin gösterilebildiğini ancak direkt ışık kaynakları ve büyüteç kullanımı gibi geleneksel yöntemler ile UV ışık ve IR aydınlatmanın kaybolan mürekkeple oluşturulmuş yazıların görünür hale getirilmesinde başarısız olduğu bildirilmiştir (9).…”

Section: Tartişma Ve Sonuçunclassified

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Söz Uçar Yazı Kalır ya Yazı Uçarsa Kaybolan Mürekkep ile Oluşturulmuş Belgelerin İncelenmesi Bir Olgu Sunumu

Şahin¹,

Kömür²,

Baklacıoğlu³

et al. 2014

Bull Leg Med

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ÖZETK a y b o l a n m ü r e k k e p s u b a z l ı b i r a s i t b a z indikatörüdür. Havaya maruz kaldıktan belirli bir zaman sonra rengi kaybolarak renksiz bir hal alır. Daha çok şaka malzemesi olarak kullanılmakla birlikte sahtecilik amacıyla da kötüye kullanılmaktadır. Bu çalışmada kaybolan mürekkeple oluşturulmuş bir senedin adli belge inceleme laboratuvarında incelenmesi sonucu tespit edilen bulgular sunulmuştur. Kaybolan mürekkeple oluşturulan belgelerin inceleme yöntemleri, bulgular ve literatür eşliğinde tartışılmıştır.Anahtar kelimeler: Adli belge inceleme, sahtecilik, kaybolan mürekkep, imza incelemesi ABSTRACTDisappearing ink are water-based acid-base indicators. It's change from a coloured to a colourless solution upon exposure to the air. Although disappearing inks are mostly used joke tool, these inks are abused in forgery. A bond that generated using disappearing ink was presented in this study. This document was examined use VSC 6000/HS in Questioned Document Examination Laboratory.

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Section: Tartişma Ve Sonuçunclassified

“…"Kaybolan Mürekkep" olarak tanımlanan madde ile y a z ı l m ı ş o l a n y a z ı l a r z a m a n l a s o l a r a k g ö z l e görülemeyecek hale gelseler dahi uygun adli belge inceleme ekipmanları kullanılarak yazılmış olan yazı ve imzaya ait bulgular tespit edilmekte ve görünür hale getirilmeleri mümkün olabilmektedir (1,9).…”

Section: Introductionunclassified

Söz Uçar Yazı Kalır ya Yazı Uçarsa Kaybolan Mürekkep ile Oluşturulmuş Belgelerin İncelenmesi Bir Olgu Sunumu

Şahin¹,

Kömür²,

Baklacıoğlu³

et al. 2014

Bull Leg Med

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“…It assists in the pursuit of justice against various types of fraud through handwriting and signature examinations on multiple types of documents, such as promissory notes, contracts, and bonds, as well as determining whether there are any alterations to such documents. Access to forgery materials in terms of committing crime is getting easier due to the increasing use and lower cost of technology and the facilitation of globalization through the use of the Internet . Disappearing ink is classified as an important class of forgery materials, and they are readily available on the market .…”

mentioning

confidence: 99%

“…Access to forgery materials in terms of committing crime is getting easier due to the increasing use and lower cost of technology and the facilitation of globalization through the use of the Internet . Disappearing ink is classified as an important class of forgery materials, and they are readily available on the market .…”

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confidence: 99%

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Prepared Disappearing Ink and Deciphering of Documents

Aşıcıoğlu

Tekin²,

Özbek

et al. 2019

Journal of Forensic Sciences

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Disappearing inks can be used for forgeries in many fields. In this study, thymolphthalein indicator solution was prepared as a disappearing ink. A total of 54 different solutions containing thymolphthalein were prepared at six different concentrations and nine different pH values. Among the prepared solutions, 0.16 g/50 mL and 0.32 g/65 mL thymolphthalein at pH 14 were the optimum solutions that were not distinguishable from regular ink when applied to promissory note. Fountain pens were filled with the abovementioned ink solutions and applied to promissory notes for experimental purposes. After 40 h, ink residues were not visible on promissory notes written with the ink with the optimum pH (pH = 14) value. To decipher the entries that disappeared, an instrumental method (Video Spectral Comparator‐8000) and a chemical method (using NH3 vapor) were used, succeeded at 0.32 g/65 mL, but failed at 0.16 g/50 mL thymolphthalein. Therefore, NH3 had to be sprayed for 0.16 g/50 mL with negligible harm.

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Detecting Fraudulent Bank Checks

Chhabra¹,

Gupta²,

Gupta³

et al. 2017

Advances in Digital Forensics XIII

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Different types of inks having certain medicolegal importance: Deciphering the faded and physically erased handwriting

Cited by 9 publications

References 7 publications

Söz Uçar Yazı Kalır ya Yazı Uçarsa Kaybolan Mürekkep ile Oluşturulmuş Belgelerin İncelenmesi Bir Olgu Sunumu

Söz Uçar Yazı Kalır ya Yazı Uçarsa Kaybolan Mürekkep ile Oluşturulmuş Belgelerin İncelenmesi Bir Olgu Sunumu

Prepared Disappearing Ink and Deciphering of Documents

Detecting Fraudulent Bank Checks

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