Evaluation of fingermark detection sequences on paper substrates

Callie Marriott, Rebecca Leeb, Zachary Wilkes, Bruce Comber, Xanthe Spindler, Claude Roux, Chris LENNARD

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

It is generally accepted that the amino acid reagent consisting of 1,2-indanedione and a catalytic amount of zinc chloride, referred to as IND-Zn, is the single best method for the detection of latent fingermarks on paper substrates and that ninhydrin is of limited value when used in sequence after this reagent. However, recent research has suggested that the sequence 1,8-diazafluoren-9-one (DFO) followed by ninhydrin may actually produce a greater number of fingermarks than IND-Zn on its own or IND-Zn followed by ninhydrin. This study focussed on the evaluation of two fingermark detection sequences for porous surfaces: (1) IND-Zn followed by ninhydrin, physical developer (PD) and the lipid stain nile red; and (2) DFO followed by ninhydrin, PD and nile red. The evaluation was undertaken using a range of latent fingermark donors and on a number of paper substrates that are commonly encountered in Australia. In addition, a pseudo-operational trial was completed on 5-year-old university examination booklets. Parallel studies were undertaken at two locations: Sydney (temperate, coastal climate) and Canberra (relatively dry, continental climate).

The results of the donor study indicated that there was a negligible difference in performance between the two sequences across all paper types and all time periods evaluated. When considering individual reagents, IND-Zn generally developed better quality fingermarks compared to DFO; however, ninhydrin had a greater enhancement effect on DFO developed marks than after IND-Zn. In the pseudo-operational trials, the IND-Zn sequence outperformed the DFO sequence. Nile red did not develop any additional marks at the end of each sequence and, as a result, the use of this technique at the end of a full sequence is of questionable value. The overall outcome was that the sequence IND-Zn followed by ninhydrin and PD is recommended for the processing of common paper substrates under the conditions typically experienced at the two locations studied
Original languageEnglish
Pages (from-to)30-37
Number of pages8
JournalForensic Science International
Volume236
Issue numberMarch
DOIs
Publication statusPublished - 2014

Fingerprint

Ninhydrin
Climate
Pamphlets
Coloring Agents
Lipids
Amino Acids
Research

Cite this

Marriott, C., Leeb, R., Wilkes, Z., Comber, B., Spindler, X., Roux, C., & LENNARD, C. (2014). Evaluation of fingermark detection sequences on paper substrates. Forensic Science International, 236(March), 30-37. https://doi.org/10.1016/j.forsciint.2013.12.028
Marriott, Callie ; Leeb, Rebecca ; Wilkes, Zachary ; Comber, Bruce ; Spindler, Xanthe ; Roux, Claude ; LENNARD, Chris. / Evaluation of fingermark detection sequences on paper substrates. In: Forensic Science International. 2014 ; Vol. 236, No. March. pp. 30-37.
@article{248de3efb09341d7a4e4c22b154b0386,
title = "Evaluation of fingermark detection sequences on paper substrates",
abstract = "It is generally accepted that the amino acid reagent consisting of 1,2-indanedione and a catalytic amount of zinc chloride, referred to as IND-Zn, is the single best method for the detection of latent fingermarks on paper substrates and that ninhydrin is of limited value when used in sequence after this reagent. However, recent research has suggested that the sequence 1,8-diazafluoren-9-one (DFO) followed by ninhydrin may actually produce a greater number of fingermarks than IND-Zn on its own or IND-Zn followed by ninhydrin. This study focussed on the evaluation of two fingermark detection sequences for porous surfaces: (1) IND-Zn followed by ninhydrin, physical developer (PD) and the lipid stain nile red; and (2) DFO followed by ninhydrin, PD and nile red. The evaluation was undertaken using a range of latent fingermark donors and on a number of paper substrates that are commonly encountered in Australia. In addition, a pseudo-operational trial was completed on 5-year-old university examination booklets. Parallel studies were undertaken at two locations: Sydney (temperate, coastal climate) and Canberra (relatively dry, continental climate).The results of the donor study indicated that there was a negligible difference in performance between the two sequences across all paper types and all time periods evaluated. When considering individual reagents, IND-Zn generally developed better quality fingermarks compared to DFO; however, ninhydrin had a greater enhancement effect on DFO developed marks than after IND-Zn. In the pseudo-operational trials, the IND-Zn sequence outperformed the DFO sequence. Nile red did not develop any additional marks at the end of each sequence and, as a result, the use of this technique at the end of a full sequence is of questionable value. The overall outcome was that the sequence IND-Zn followed by ninhydrin and PD is recommended for the processing of common paper substrates under the conditions typically experienced at the two locations studied",
keywords = "Fingerprints, Porous surfaces, 1, 2-Indanedione, Ninhydrin, 8-Diazafluoren-9-one, Physical developer, Nile red",
author = "Callie Marriott and Rebecca Leeb and Zachary Wilkes and Bruce Comber and Xanthe Spindler and Claude Roux and Chris LENNARD",
year = "2014",
doi = "10.1016/j.forsciint.2013.12.028",
language = "English",
volume = "236",
pages = "30--37",
journal = "Forensic Science",
issn = "0379-0738",
publisher = "Elsevier Ireland Ltd",
number = "March",

}

Marriott, C, Leeb, R, Wilkes, Z, Comber, B, Spindler, X, Roux, C & LENNARD, C 2014, 'Evaluation of fingermark detection sequences on paper substrates', Forensic Science International, vol. 236, no. March, pp. 30-37. https://doi.org/10.1016/j.forsciint.2013.12.028

Evaluation of fingermark detection sequences on paper substrates. / Marriott, Callie; Leeb, Rebecca; Wilkes, Zachary; Comber, Bruce; Spindler, Xanthe; Roux, Claude; LENNARD, Chris.

In: Forensic Science International, Vol. 236, No. March, 2014, p. 30-37.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Evaluation of fingermark detection sequences on paper substrates

AU - Marriott, Callie

AU - Leeb, Rebecca

AU - Wilkes, Zachary

AU - Comber, Bruce

AU - Spindler, Xanthe

AU - Roux, Claude

AU - LENNARD, Chris

PY - 2014

Y1 - 2014

N2 - It is generally accepted that the amino acid reagent consisting of 1,2-indanedione and a catalytic amount of zinc chloride, referred to as IND-Zn, is the single best method for the detection of latent fingermarks on paper substrates and that ninhydrin is of limited value when used in sequence after this reagent. However, recent research has suggested that the sequence 1,8-diazafluoren-9-one (DFO) followed by ninhydrin may actually produce a greater number of fingermarks than IND-Zn on its own or IND-Zn followed by ninhydrin. This study focussed on the evaluation of two fingermark detection sequences for porous surfaces: (1) IND-Zn followed by ninhydrin, physical developer (PD) and the lipid stain nile red; and (2) DFO followed by ninhydrin, PD and nile red. The evaluation was undertaken using a range of latent fingermark donors and on a number of paper substrates that are commonly encountered in Australia. In addition, a pseudo-operational trial was completed on 5-year-old university examination booklets. Parallel studies were undertaken at two locations: Sydney (temperate, coastal climate) and Canberra (relatively dry, continental climate).The results of the donor study indicated that there was a negligible difference in performance between the two sequences across all paper types and all time periods evaluated. When considering individual reagents, IND-Zn generally developed better quality fingermarks compared to DFO; however, ninhydrin had a greater enhancement effect on DFO developed marks than after IND-Zn. In the pseudo-operational trials, the IND-Zn sequence outperformed the DFO sequence. Nile red did not develop any additional marks at the end of each sequence and, as a result, the use of this technique at the end of a full sequence is of questionable value. The overall outcome was that the sequence IND-Zn followed by ninhydrin and PD is recommended for the processing of common paper substrates under the conditions typically experienced at the two locations studied

AB - It is generally accepted that the amino acid reagent consisting of 1,2-indanedione and a catalytic amount of zinc chloride, referred to as IND-Zn, is the single best method for the detection of latent fingermarks on paper substrates and that ninhydrin is of limited value when used in sequence after this reagent. However, recent research has suggested that the sequence 1,8-diazafluoren-9-one (DFO) followed by ninhydrin may actually produce a greater number of fingermarks than IND-Zn on its own or IND-Zn followed by ninhydrin. This study focussed on the evaluation of two fingermark detection sequences for porous surfaces: (1) IND-Zn followed by ninhydrin, physical developer (PD) and the lipid stain nile red; and (2) DFO followed by ninhydrin, PD and nile red. The evaluation was undertaken using a range of latent fingermark donors and on a number of paper substrates that are commonly encountered in Australia. In addition, a pseudo-operational trial was completed on 5-year-old university examination booklets. Parallel studies were undertaken at two locations: Sydney (temperate, coastal climate) and Canberra (relatively dry, continental climate).The results of the donor study indicated that there was a negligible difference in performance between the two sequences across all paper types and all time periods evaluated. When considering individual reagents, IND-Zn generally developed better quality fingermarks compared to DFO; however, ninhydrin had a greater enhancement effect on DFO developed marks than after IND-Zn. In the pseudo-operational trials, the IND-Zn sequence outperformed the DFO sequence. Nile red did not develop any additional marks at the end of each sequence and, as a result, the use of this technique at the end of a full sequence is of questionable value. The overall outcome was that the sequence IND-Zn followed by ninhydrin and PD is recommended for the processing of common paper substrates under the conditions typically experienced at the two locations studied

KW - Fingerprints

KW - Porous surfaces

KW - 1

KW - 2-Indanedione

KW - Ninhydrin

KW - 8-Diazafluoren-9-one

KW - Physical developer

KW - Nile red

UR - http://www.scopus.com/inward/record.url?scp=84892867509&partnerID=8YFLogxK

U2 - 10.1016/j.forsciint.2013.12.028

DO - 10.1016/j.forsciint.2013.12.028

M3 - Article

VL - 236

SP - 30

EP - 37

JO - Forensic Science

JF - Forensic Science

SN - 0379-0738

IS - March

ER -