The detection of female DNA from the penis in sexual assault cases

Kaarstad, Katrin; Rohde, Marianne Cathrine; Larsen, Jakob Friis; Eriksen, Birthe; Thomsen, Jørgen Lange

doi:10.1016/j.jcfm.2006.05.003

Cited by 13 publications

(11 citation statements)

References 5 publications

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“…The mean time interval from assault to examination was 18 h (range 1e154 h). 1 Of 97 cases, 26 provided a DNA profile from the female victim, giving a low success rate. However, no insight is given into whether vaginal, oral or anal penetration had taken place, whereby giving the conditions for deposition of female cells, or if the suspect had washed himself after the alleged assault.…”

Section: Discussionmentioning

confidence: 99%

“…Assessment of success rates for retrieving female cells from penile swabs is in the literature mainly based on records from sexual assault cases retrospectively reviewed. 1,2 According to these data, the recovery rate of female cells from penile swabs is low. The recovery of female cells on postcoital penile swabs potentially provide key evidence in sexual assault cases demonstrating that penetration is likely to have occurred.…”

Section: Introductionmentioning

confidence: 99%

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Assessing the presence of female DNA on post-coital penile swabs: Relevance to the investigation of sexual assault

Farmen

Haukeli

Ruoff

et al. 2012

Journal of Forensic and Legal Medicine

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessing the presence of female DNA on post-coital penile swabs: Relevance to the investigation of sexual assault

Farmen

Haukeli

Ruoff

et al. 2012

Journal of Forensic and Legal Medicine

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“…Kleemann et al [18] could also detect vaginal epithelial cells in two alleged perpetrators. In the study by Kaarstad et al [23], DNA profile of the female victim could be successfully produced from the alleged perpetrator's penile sample in 26 out of 97 cases. A DNA analysis of the penile smear for detection of available foreign material of the victim is particularly advisable with early presented suspects, since this is the only way for a positive match to the victim, while the microscopic detection of sperm supplies evidence of an ejaculation only, and the histologic finding of vaginal epithelial cells proves that a sexual intercourse had taken place without the identification of the partner.…”

Section: Discussionmentioning

confidence: 99%

Analysis of clinical forensic examination reports on sexual assault

Jänisch¹,

Meyer²,

Germerott

et al. 2010

Int J Legal Med

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Medical-forensic examination of sexual assault victims and alleged offenders is a common task of many forensic institutes. In the current study, the results from samples taken at the Institute of Legal Medicine, Hanover Medical School, during a period from 2005 to 2007 were retrospectively evaluated. In total, 292 victims (283 females and nine males) and 88 suspects were examined. At the time of the assault, 41.8% of the victims and 43.2% of the alleged perpetrators were under the influence of alcohol. Injuries were found in 84.9% of the victims and 39.8% of the suspects. Thirty victims (10.3%) reported having been choked or strangled. Cytology was performed in 218 victims. In 81 cases (38.0%), sperm could be detected in vaginal swabs up to 3 days post-assault. In seven (18.9%) out of 37 anal samples, evidence of sperm could be found 24 h post-assault. None of 22 oral samples was positive for sperm. Out of 301 sexual assault cases, 171 could be proved by means of medical-forensic examination. In summary, our evaluation shows that an early medical-forensic examination of both victim and suspect can secure numerous medical findings. Furthermore, persons intoxicated by alcohol, handicapped persons and persons with psychiatric disorders are more vulnerable to become a sexual assault victim.

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“…Since that time there have been several studies regarding the analysis of DNA material recovered from penile swabs conducted by forensic labs in Denmark, Slovenia, and the USA (Cina, Collins, Fitts, & Pettenati, 2000a, 2000bDrobnic, 2003;Kaarstad, Rohde, Larsen, Eriksen, & Thomsen, 2007).…”

Section: Substance Removal Testsmentioning

confidence: 99%

“…In the most recent reported study by Kaarstad et al (2007) a total of 227 cases were examined over a three-year period. In 57% of the cases no suitable material was available.…”

Section: Substance Removal Testsmentioning

confidence: 99%

Invasive searches: penile washings, bodily examinations, and other investigative considerations for sex‐related offences

Burchill¹

2011

Police Practice and Research

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Foreign material, debris, blood, saliva, hair, and other biological material found on the male penis have long served as indicators of recent sexual intercourse in forensic investigations. However, the legality and process of recovering this evidence from the suspect's penis has received no attention from the academic community, the courts, or law enforcement agencies in Canada until recently. As a result, this paper attempts to review the literature and case law that does exist surrounding the historical use of penile swabs in sexual assault investigations in the USA and Europe and the current use of this technique in Canada by the Winnipeg Police Service.

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The detection of female DNA from the penis in sexual assault cases

Cited by 13 publications

References 5 publications

Assessing the presence of female DNA on post-coital penile swabs: Relevance to the investigation of sexual assault

Assessing the presence of female DNA on post-coital penile swabs: Relevance to the investigation of sexual assault

Analysis of clinical forensic examination reports on sexual assault

Invasive searches: penile washings, bodily examinations, and other investigative considerations for sex‐related offences

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