70% Ethylated and Non-Ethylated Swab: A Trace Evidence Recovery Method and Usefulness in Spectacles Forensic Evidence

Simon Martin Manyanza Nzilibili, Muh. Abduh Dwi Putra, Ahmad Yudianto

2018

Abstract

Trace evidence recovery has been studied to involve a number of methods with the inclusion of swabbing methods. In swabbing, different fluids have also been proposed with minimal highlight to ethylated swabbing (prepared from ethanol). Through the use of swabbing fluid at 70% dilution (70% ethylated swab) run simultaneously with distilled water swab, the findings discovered were that 70% ethylated swab was found to concentrate large amount of DNA sample (1421µg/ml), twice the amount recovered by distilled water swab (654.5µg/ml). In terms of purity of recovered DNA; 70% ethylated swab presented nearly similar purity with distilled water DNA pellet (ethylated swab yielded 1.219 purity ratio while distilled water swab yielded 1.176). Electrophoresis DNA molecule migration displayed multiple bands in contrast with 70% ethylated swab from positive to negative electrode. This shows the presence of both small and larger sized DNA fragments. Distilled water swab displayed one deep band near negative terminal electrode. Thereby; the study finding analysis illustrates and suggests that 70% ethylated swab is a useful and strong method in recovering trace DNA evidences for successful DNA profile establishment. In addition, spectacle is prospective a potential harbor of trace DNA sample for forensic investigation.

Paper Citation

in Harvard Style

Nzilibili S., Putra M. and Yudianto A. (2018). 70% Ethylated and Non-Ethylated Swab: A Trace Evidence Recovery Method and Usefulness in Spectacles Forensic Evidence.In Proceedings of the 2nd International Conference Postgraduate School - Volume 1: ICPS, ISBN 978-989-758-348-3, pages 312-316. DOI: 10.5220/0007541903120316

in Bibtex Style

@conference{icps18,
author={Simon Martin Manyanza Nzilibili and Muh. Abduh Dwi Putra and Ahmad Yudianto},
title={70% Ethylated and Non-Ethylated Swab: A Trace Evidence Recovery Method and Usefulness in Spectacles Forensic Evidence},
booktitle={Proceedings of the 2nd International Conference Postgraduate School - Volume 1: ICPS,},
year={2018},
pages={312-316},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007541903120316},
isbn={978-989-758-348-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 2nd International Conference Postgraduate School - Volume 1: ICPS,
TI - 70% Ethylated and Non-Ethylated Swab: A Trace Evidence Recovery Method and Usefulness in Spectacles Forensic Evidence
SN - 978-989-758-348-3
AU - Nzilibili S.
AU - Putra M.
AU - Yudianto A.
PY - 2018
SP - 312
EP - 316
DO - 10.5220/0007541903120316