Fluorescent identification of biological and other stains on skin by the use of alternative light sources

Wawryk, Jacob; Odell, Morris

doi:10.1016/j.jcfm.2005.03.005

Cited by 36 publications

(24 citation statements)

References 8 publications

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“…Race was found to not be significantly associated with the increased or decreased detectability of any particular evidence types, or to all evidence in general. It is therefore suggested that that the results of international studies [12][13] conducted on fair-skinned individuals are applicable to South Africa"s predominately Black population.…”

Section: Discussionmentioning

confidence: 99%

“…[19] Most studies using Alternative Light Source systems focus on inert substrates which limits its applicability to the examination of human skin. [12] In other studies, the substances were allowed to dry before examination. [12,[20][21] In the study at the PMLL, the cases were examined after refrigeration which caused many of the biological samples deposited on the bodies to be in liquid state either from the scene or due to condensation created by the refrigerator.…”

Section: Discussionmentioning

confidence: 99%

“…[12] In other studies, the substances were allowed to dry before examination. [12,[20][21] In the study at the PMLL, the cases were examined after refrigeration which caused many of the biological samples deposited on the bodies to be in liquid state either from the scene or due to condensation created by the refrigerator. This may explain why readily visible wet samples were better seen by means of reflection than fluorescence in this study.…”

Section: Discussionmentioning

confidence: 99%

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The application of imaging technologies in the detection of trace evidence in forensic medical investigation

Cocks

Toit-Prinsloo

Steffens

et al. 2015

Forensic Science International

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In a country notorious for violent crime, it seems that South African medico-legal laboratories make minimal application of technology in the death investigation process and little attention is given to trace evidence. Non-destructive, non-invasive, portable and cost-effective tools are required. This study was conducted at the Pretoria Medico-Legal Laboratory. The surface area of the bodies and clothing of victims of fatal interpersonal violence were examined using a torch, magnifying lamp, portable digital microscope and alternate light source to gauge their potential for trace evidence detection. Most studies apply these and similar tools to inert surfaces, with few focusing on their application to human skin. There was a statistically significant difference in the detection of many of the evidence types between the naked-eye observation of the pathologists and the technologies. The different imaging technologies were compared as to their cost, evidence detection ability and ease of use. The most common evidence types discovered on the bodies and clothing of victims of fatal interpersonal violence, as well as the propensity of each tool to detect these, was evaluated in order to devise the best option for incorporation into the Pretoria Medico-Legal Laboratory routine. The digital microscope performed best overall followed by the magnifying lamp, torch and the Polilight®. This study aimed to justify the investment of more time, effort and funding into trace evidence recovery in the South African mortuary environment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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The application of imaging technologies in the detection of trace evidence in forensic medical investigation

Cocks

Toit-Prinsloo

Steffens

et al. 2015

Forensic Science International

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“…Petroleum-based lubricants were observed to fluoresce at 415nm and 450nm wavelengths. Only one study was found, which tested for fluorescence of body fluids, and various lubricants and moisturizers on human skin using ALS (Wawryk & Odell, 2005). None of the topical agents tested fluoresced under any of the tested light-emitting diode (LED) and halogen lamp light sources.…”

Section: Review Of Literaturementioning

confidence: 99%

“…In the early 1990s, UV light was found helpful in identifying bruises on the skin (West, Barsley, Frair, & Stewart, 1992;West, Barsley, Hall, Hayne, & Cimrmancic, 1992). Biological and nonbiological evidence, such as lubricants, creams, and oils used to facilitate sexual assault, may be identified with alternate light (Wawryk & Odell, 2005). Sources of trace evidence can corroborate the patient's history (Santucci, Nelson, McQuillen, Duffy, & Linakis, 1999), even when a perpetrator intentionally uses a condom to avoid transfer of biological evidence (Maynard, Allwell, Roux, Dawson, & Royds, 2001).…”

Section: Introductionmentioning

confidence: 99%

Alternate Light Source Findings of Common Topical Products

2016

Journal of Forensic Nursing

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Background-One of the important roles of a forensic clinician is to perform examinations of patients who are victims and suspects of crime. Alternate light source (ALS) is a tool that can improve evidence collection and enhance visualization of injuries. The purpose of this study was to examine if commonly used topical products fluoresce or absorb when examined with an ALS. Secondly, we aim to identify patient and exam variables that may impact findings.

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Assault: Sexually Motivated

Payne‐James

2009

Wiley Encyclopedia of Forensic Science

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The investigation of allegations of sexual assault requires appropriate medical examinations and forensic sampling of both complainant and the alleged perpetrator. Such examinations require knowledge of normal human anatomy and physiology, principles of appropriate examination, appropriate methods of assessment and forensic sampling, appropriate means of documentation, and a full awareness of the possible clinical findings following sexual assault. The interpretation of findings will also require an awareness of law in the relevant jurisdiction. This chapter addresses these issues from the perspective of the England & Wales jurisdiction, but the broad medical principles of history taking, clinical examination and forensic sampling are applicable worldwide.

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Fluorescent identification of biological and other stains on skin by the use of alternative light sources

Cited by 36 publications

References 8 publications

The application of imaging technologies in the detection of trace evidence in forensic medical investigation

The application of imaging technologies in the detection of trace evidence in forensic medical investigation

Alternate Light Source Findings of Common Topical Products

Assault: Sexually Motivated

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