Evaluation of the one-step Lumicyano™ used in the visualisation of fingermarks on fabrics

Nicole Beerman, Anne Savage, Lynn Dennany, Joanna Fraser

Research output: Contribution to journalArticle

Abstract

This study consisted of three parts to evaluate the performance of Lumicyano™ on a variety of fabrics. One part assessed the impact of dye percentage (8%, 9% and 10%) on visualisation of fingermark detail and luminescent brightness in split grab marks. A 9% dye produced the highest quality detail of grab impressions with least interference from background fluorescence. The second part investigated the optimal relative humidity (RH, 75-84%) for certain fabric types using Lumicyano on split, six-series depletion fingermarks. It was concluded that the recommended RH of 80% remained the ideal cyanoacrylate fuming environment. The final and third part of this study determined the impact of sequential addition of Basic Yellow 40 (BY40) on Lumicyano compared to traditional cyanoacrylate (CA) followed with BY40 application. Results from this study demonstrated that Lumicyano on its own developed fingermarks with superior quality to Lumicyano with sequential addition of BY40 or traditional cyanoacrylate followed by BY40. Inclusion of more fabrics, donors and longer ageing periods should be explored in future studies to determine what frameworks are best for certain types of fabrics.
LanguageEnglish
Pages486-497
Number of pages12
JournalScience and Justice
Volume59
Issue number5
Early online date6 Jun 2019
DOIs
Publication statusPublished - 30 Sep 2019

Fingerprint

Cyanoacrylates
Visualization
Coloring Agents
Humidity
Fluorescence
Luminance
Atmospheric humidity
Aging of materials

Keywords

  • fabrics
  • humidity
  • dye
  • lumicyano
  • cyanoacrylate fuming

Cite this

Beerman, Nicole ; Savage, Anne ; Dennany, Lynn ; Fraser, Joanna. / Evaluation of the one-step Lumicyano™ used in the visualisation of fingermarks on fabrics. In: Science and Justice. 2019 ; Vol. 59, No. 5. pp. 486-497.
@article{3067258de39b4b1389ff1e880a20098d,
title = "Evaluation of the one-step Lumicyano™ used in the visualisation of fingermarks on fabrics",
abstract = "This study consisted of three parts to evaluate the performance of Lumicyano™ on a variety of fabrics. One part assessed the impact of dye percentage (8{\%}, 9{\%} and 10{\%}) on visualisation of fingermark detail and luminescent brightness in split grab marks. A 9{\%} dye produced the highest quality detail of grab impressions with least interference from background fluorescence. The second part investigated the optimal relative humidity (RH, 75-84{\%}) for certain fabric types using Lumicyano on split, six-series depletion fingermarks. It was concluded that the recommended RH of 80{\%} remained the ideal cyanoacrylate fuming environment. The final and third part of this study determined the impact of sequential addition of Basic Yellow 40 (BY40) on Lumicyano compared to traditional cyanoacrylate (CA) followed with BY40 application. Results from this study demonstrated that Lumicyano on its own developed fingermarks with superior quality to Lumicyano with sequential addition of BY40 or traditional cyanoacrylate followed by BY40. Inclusion of more fabrics, donors and longer ageing periods should be explored in future studies to determine what frameworks are best for certain types of fabrics.",
keywords = "fabrics, humidity, dye, lumicyano, cyanoacrylate fuming",
author = "Nicole Beerman and Anne Savage and Lynn Dennany and Joanna Fraser",
year = "2019",
month = "9",
day = "30",
doi = "10.1016/j.scijus.2019.06.001",
language = "English",
volume = "59",
pages = "486--497",
journal = "Science and Justice",
issn = "1355-0306",
number = "5",

}

Evaluation of the one-step Lumicyano™ used in the visualisation of fingermarks on fabrics. / Beerman, Nicole; Savage, Anne; Dennany, Lynn; Fraser, Joanna.

In: Science and Justice, Vol. 59, No. 5, 30.09.2019, p. 486-497.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Evaluation of the one-step Lumicyano™ used in the visualisation of fingermarks on fabrics

AU - Beerman, Nicole

AU - Savage, Anne

AU - Dennany, Lynn

AU - Fraser, Joanna

PY - 2019/9/30

Y1 - 2019/9/30

N2 - This study consisted of three parts to evaluate the performance of Lumicyano™ on a variety of fabrics. One part assessed the impact of dye percentage (8%, 9% and 10%) on visualisation of fingermark detail and luminescent brightness in split grab marks. A 9% dye produced the highest quality detail of grab impressions with least interference from background fluorescence. The second part investigated the optimal relative humidity (RH, 75-84%) for certain fabric types using Lumicyano on split, six-series depletion fingermarks. It was concluded that the recommended RH of 80% remained the ideal cyanoacrylate fuming environment. The final and third part of this study determined the impact of sequential addition of Basic Yellow 40 (BY40) on Lumicyano compared to traditional cyanoacrylate (CA) followed with BY40 application. Results from this study demonstrated that Lumicyano on its own developed fingermarks with superior quality to Lumicyano with sequential addition of BY40 or traditional cyanoacrylate followed by BY40. Inclusion of more fabrics, donors and longer ageing periods should be explored in future studies to determine what frameworks are best for certain types of fabrics.

AB - This study consisted of three parts to evaluate the performance of Lumicyano™ on a variety of fabrics. One part assessed the impact of dye percentage (8%, 9% and 10%) on visualisation of fingermark detail and luminescent brightness in split grab marks. A 9% dye produced the highest quality detail of grab impressions with least interference from background fluorescence. The second part investigated the optimal relative humidity (RH, 75-84%) for certain fabric types using Lumicyano on split, six-series depletion fingermarks. It was concluded that the recommended RH of 80% remained the ideal cyanoacrylate fuming environment. The final and third part of this study determined the impact of sequential addition of Basic Yellow 40 (BY40) on Lumicyano compared to traditional cyanoacrylate (CA) followed with BY40 application. Results from this study demonstrated that Lumicyano on its own developed fingermarks with superior quality to Lumicyano with sequential addition of BY40 or traditional cyanoacrylate followed by BY40. Inclusion of more fabrics, donors and longer ageing periods should be explored in future studies to determine what frameworks are best for certain types of fabrics.

KW - fabrics

KW - humidity

KW - dye

KW - lumicyano

KW - cyanoacrylate fuming

UR - https://www.sciencedirect.com/journal/science-and-justice

U2 - 10.1016/j.scijus.2019.06.001

DO - 10.1016/j.scijus.2019.06.001

M3 - Article

VL - 59

SP - 486

EP - 497

JO - Science and Justice

T2 - Science and Justice

JF - Science and Justice

SN - 1355-0306

IS - 5

ER -