Fibre persistence on immersed garment—Influence of knitted recipient fabrics

Lepot, Laurent; Driessche, Thérèse Vanden; Lunstroot, K.; Gason, F.; Wael, K. De

doi:10.1016/j.scijus.2015.02.006

Cited by 18 publications

(4 citation statements)

References 17 publications

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“…At 1 h persistence time, considerably higher amounts of VOCs were generally recovered from cotton compared to polyester. This trend where cotton enables higher recoveries compared to polyester has been previously reported in the published forensic science literature for the persistence of multiple traces such as hair, pollen, and fibres [33,46,47]. After 1 h, similar quantities of VOCs were recovered from both fabrics.…”

Section: J O U R N a L P R E -P R O O Fsupporting

confidence: 77%

“…However, in this present study, for the shortest time of 1 h, higher amounts of VOCs were consistently recovered from cotton compared to polyester, with the exception of linalool, where the recoveries were similar between the two fabrics ( Figure 1). This behaviour has been previously observed for the persistence on fabrics of other traces, such as hair, pollen, and fibres [33,46,47]. For example, in a study focused on the persistence of human scalp hair on fabrics for times as long as 8 h, it was demonstrated that with the exception of wool, the greatest persistence of hair was observed on a cotton t-shirt (maximum of around 5 h) and the shortest persistence on a polyester top (maximum 1 h) [46].…”

Section: Room Temperaturesupporting

confidence: 77%

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Persistence of transferred fragrance on fabrics for forensic reconstruction applications

Gherghel

Morgan²,

Arrebola

et al. 2020

Science & Justice

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Section: J O U R N a L P R E -P R O O Fsupporting

confidence: 77%

Section: Room Temperaturesupporting

confidence: 77%

Persistence of transferred fragrance on fabrics for forensic reconstruction applications

Gherghel

Morgan²,

Arrebola

et al. 2020

Science & Justice

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“…Therefore, reasoning needs to take place at the activity level. Many have already studied transfer and persistence of fibers in various scenarios [1,4,[11][12][13][14][15][16][17] and, with the exception of transfer on car seats [18][19][20], most studies have systematically considered simplified activities rather than realistic scenarios [1,4,17,[21][22][23][24]. Moreover, to the knowledge of the authors, no transfer study has yet been carried out based on legitimate alternative activities involving contact close to criminal actions.…”

Section: Introductionmentioning

confidence: 99%

A preliminary investigation of textile fibers in smothering scenarios and alternative legitimate activities

Schnegg

Turchany

Deviterne

et al. 2017

Forensic Science International

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Was this group of target fibers transferred during a criminal action? Is it possible that it was transferred during another legitimate activity? Acquiring knowledge about the activity, whether legitimate or criminal, leading to the transfer of a group of fibers is a recurring challenge encountered throughout the evidence interpretation process. Trace evidence such as fibers may assist with generating a reasoning of the activity which produced the trace, but this assumes that one already has a thorough understanding of the transfer phenomenon. How to generate and then use such relevant knowledge? What are the influencing parameters and which ones should (or can) be controlled? The present work focuses on homicides by smothering using a pillow and the transfer of fibers on the face of the victim in such events. A legitimate activity - represented by a night's sleep on a pillow - was also investigated since such legitimate, alternative explanations concerning the presence of fibers could likely be formulated by the suspect. The number and distribution of fibers transferred onto the victim's face in either scenario were investigated and interpreted using a Bayesian approach. Results showed that the shedding capacity of the pillowcase strongly impact the number of fibers recovered. The nature of the action, modus operandi and amount of friction could not be excluded in their influence on the transfer of fibers. Finally, likelihood ratios indicating the number of fibers recovered from the victim's face can provide relevant information by supporting either criminal or legitimate proposition (i.e., smothering or night's sleep scenario).

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“…Location of trace evidence such as hairs and fibers may be compromised once the foam has dissipated into a liquid and drained from the enclosure (78,79). Wet paper becomes very fragile and may be difficult to extract from a gel block after being explosively forced into it.…”

mentioning

confidence: 99%

Blast Suppression Foam, Aqueous Gel Blocks, and their Effect on Subsequent Analysis of Forensic Evidence*

Monson

Kyllonen²,

Leggitt

et al. 2020

Journal of Forensic Sciences

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In addition to having blast mitigation properties, aqueous foam concentrate AFC-380 blast suppression foam is designed to capture aerosolized chemical, biological, and radioactive particles during render-safe procedures of explosive devices. Exposure to aqueous environments and surfactants may negatively affect forensic evidence found at the scene, but the effects of AFC-380 foam and aqueous gel on the preservation and subsequent analysis of forensic evidence have not previously been investigated. Sebaceous finger and palm prints and DNA samples on paper, cardboard, tape, and various metal and plastic items, along with hairs, carpet and yarn fibers, and inks and documents, were exposed to AFC-380 foam. Similar mock evidence was also exposed to a superabsorbent gel of the type found in aqueous gel blocks used for shrapnel containment. Exposure to foam or aqueous gel was associated with a dilution effect for recovered DNA samples, but quality of the samples was not substantially affected. In contrast, exposure to AFC-380 foam or gel was detrimental to development of latent finger and palm prints on any substrate. Neither the hair nor the fiber samples were affected by exposure to either the foam or gel. Indented writing on the document samples was detrimentally affected by foam or gel exposure, but not inks and toners. The results from this study indicate that most types of forensic evidence recovered after being exposed to aqueous gel or blast suppression foam can be reliably analyzed, but latent finger and palm prints may be adversely affected.

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Fibre persistence on immersed garment—Influence of knitted recipient fabrics

Cited by 18 publications

References 17 publications

Persistence of transferred fragrance on fabrics for forensic reconstruction applications

Persistence of transferred fragrance on fabrics for forensic reconstruction applications

A preliminary investigation of textile fibers in smothering scenarios and alternative legitimate activities

Blast Suppression Foam, Aqueous Gel Blocks, and their Effect on Subsequent Analysis of Forensic Evidence*

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