Detection of semen and blood stains using polilight as a light source

Stoilovic, Milutin

doi:10.1016/0379-0738(91)90194-n

Cited by 97 publications

(55 citation statements)

References 1 publication

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“…It has been used to detect semen both at crime scenes [3][4][5] and during sexual assault evaluations (SAEs). [3][4][5][6][7][8][9] Because the WL is inexpensive, is easy to use, and has ''accepted'' screening attributes, it has become an integral part of many emergency departments for SAE, and is commonly used by emergency personnel. In a survey of sexual assault nurse examiner programs in the United States, Ciancone et al reported that 86% (51/59) of programs used a WL for SAE.…”

mentioning

confidence: 99%

An Alternate Light Source to Detect Semen

Nelson¹,

Santucci²

2002

Acad Emergency Med

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The Wood's lamp (WL) has been used in sexual assault evaluations. Recent data have shown that semen does not fluoresce with a WL and that physicians are unable to differentiate semen from other common medicaments using a WL. Objectives: To determine whether physicians could differentiate semen from other products using an alternate light source (ALS), and to investigate whether a brief training period with the ALS would enhance physicians' ability to differentiate between semen and other commonly used products. Methods: An ALS, Bluemaxx BM500, was found to cause semen to fluoresce. Physicians were first asked to use this ALS to identify semen and then to distinguish between a semen sample and other products. Physicians then received a training class on the use of the ALS and were then asked to differentiate semen from other products. Results: All physicians identified the semen as fluorescing and 25% successfully differentiated the semen from the other products using the ALS. Products most commonly mistaken for semen were a hand cream, Castille soap, and bacitracin. After the training session, 83% of the physicians successfully differentiated the semen from other products. The ALS, while not specific for semen identification, was 100% sensitive for it. Conclusions: Physicians instructed in the use of an alternate light source (BM 500) are able to identify semen as fluorescing and can differentiate semen (after a training session) from other commonly used products.

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confidence: 99%

An Alternate Light Source to Detect Semen

Nelson¹,

Santucci²

2002

Acad Emergency Med

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“…[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%

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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“…In the following year, the same author tested an UV-Vis lamp working along a wider wavelength range, and better results were achieved due to the increase of stains fluorescence [9]. By using a wider range of UV-Vis wavelengths, Stoilovic, in 1991, achieved the detection of dried semen and blood stains on photo luminescent and non-photo luminescent substrates [10]. In addition, some procedures for the correct detection of semen and blood stains were defined from this work.…”

Section: Body Fluids and Spectroscopic Techniques In Forensicsmentioning

confidence: 99%

Body Fluids and Spectroscopic Techniques in Forensics: A Perfect Match?

Zapata¹,

Gregório²,

García‐Ruiz³

2016

J Forensic Med

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Human body fluids are of great interest in forensics, due to the possibility to extract their genetic information. At the moment, there is the need to develop a non-destructive, rapid and user-friendly method for the detection and identification of the body fluids usually found at crime scenes: blood, semen, vaginal fluid, saliva, sweat and urine. In this review, the spectroscopic techniques used or being researched on this topic are discussed, taking into account their advantages, limitations and advances. Although, UV-Vis light sources are used worldwide in forensic laboratories for the location of body fluids, they are not selective enough to be confirmatory. HSI, FTIR and Raman spectroscopy seem to be suitable for the identification and discrimination of body fluids, though comprehensive research about some unsolved aspects must be performed first.

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Detection of semen and blood stains using polilight as a light source

Cited by 97 publications

References 1 publication

An Alternate Light Source to Detect Semen

An Alternate Light Source to Detect Semen

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

Body Fluids and Spectroscopic Techniques in Forensics: A Perfect Match?

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