Indentation recovery threshold using the Electrostatic Detection Apparatus®
Journal article
Authors | Roloff, B., Offa, B. and Turner, I. |
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Abstract | The Electrostatic Detection Apparatus® (ESDA) is an instrument employing techniques used by Questioned Document Examiners (QDE) for the development of indented impressions. It has been reported that impressions can be recovered from between three and five sheets beneath the original writing; however, there have been limited studies on the impact of paper type in this process. In this experiment, paper densities ranging from 54–170 g/m2 were examined and evaluated using a standard ESDA® protocol. Paper density affects both the quality and the depth at which an underlying impression can be visualized by electrostatic methods (between one and five sheets). Knowing the paper density could aid QDE in the effective examination of documents for impressions. |
Keywords | Electrostatic Detection Apparatus®; ESDA; indented impression |
Year | 2016 |
Journal | Canadian Society of Forensic Science Journal |
Journal citation | 50 (1), pp. 1-8 |
Publisher | Routledge - Taylor and Francis |
ISSN | 0008-5030 |
2332-1660 | |
Digital Object Identifier (DOI) | https://doi.org/10.1080/00085030.2016.1222706 |
Web address (URL) | http://dx.doi.org/10.1080/00085030.2016.1222706 |
Output status | Published |
Publication dates | 05 Sep 2016 |
Publication process dates | |
Accepted | 07 Jan 2016 |
Deposited | 10 Mar 2023 |
https://repository.derby.ac.uk/item/9x92y/indentation-recovery-threshold-using-the-electrostatic-detection-apparatus
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