scholarly journals Biological Evidence Management for DNA Analysis in Cases of Sexual Assault

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Teresa Magalhães ◽  
Ricardo Jorge Dinis-Oliveira ◽  
Benedita Silva ◽  
Francisco Corte-Real ◽  
Duarte Nuno Vieira

Biological evidence with forensic interest may be found in several cases of assault, being particularly relevant if sexually related. Sexual assault cases are characterized by low rates of disclosure, reporting, prosecution, and conviction. Biological evidence is sometimes the only way to prove the occurrence of sexual contact and to identify the perpetrator. The major focus of this review is to propose practical approaches and guidelines to help health, forensic, and law enforcement professionals to deal with biological evidence for DNA analysis. Attention should be devoted to avoiding contamination, degradation, and loss of biological evidence, as well as respecting specific measures to properly handle evidence (i.e., selection, collection, packing, sealing, labeling, storage, preservation, transport, and guarantee of the chain custody). Biological evidence must be carefully managed since the relevance of any finding in Forensic Genetics is determined, in the first instance, by the integrity and quantity of the samples submitted for analysis.

2021 ◽  
pp. 002581722096648
Author(s):  
Naresh Kumar ◽  
Pooja Puri ◽  
SK Shukla ◽  
Deepa Verma

Increasing numbers of female victims of violent sexual assaults are being murdered with the aim of concealing the identity of the perpetrator. Proper handling and analysis of evidence is very important in gaining a conviction in many criminal cases. After evidence is collected, due precautions must be taken to ensure that the integrity of the sample is maintained, and chances of contamination are minimised. This paper presents a case study where improper handling of biological evidence led to loss of evidentiary value, and the semen could not be located on the vaginal swabs and victim’s garments due to improper preservation of samples. However, the DNA from the nail of a decomposed finger helped identify the victim, and the suspect was apprehended based on the clues given by her family.


2020 ◽  
pp. 107780122095426
Author(s):  
Ijeoma Nwabuzor Ogbonnaya ◽  
Olufunmilayo Ibitola Fawole ◽  
Cynthia Fraga Rizo

We investigated 13 domestic violence (DV) and sexual assault agency directors’ perspectives regarding Nigerian immigrants’ experiences of violence, DV-related service needs, and best strategies for providing those needs. Directors across five U.S. states were surveyed. Descriptive analyses showed the most common DV types were controlling behavior and cultural/traditional. The most important DV support needs were informational, informal, and legal. Formal support from DV agencies, support groups, and law enforcement was rated the most helpful strategies. Participants wanted to learn more about Nigerian immigrants’ DV experiences. Findings highlight implications for the development of Nigerian-specific DV services.


2021 ◽  
pp. 107780122110211
Author(s):  
Trish Oberweis ◽  
Dayna Henry ◽  
Stacey Griner ◽  
Ekaterina Gorislavsky

Research has identified the necessity of sexual assault victims to label their experience as criminal to initiate reporting. However, barriers exist in labeling uninvited sexual contact as criminal. This study examined college students’ assessments of whether eight nonconsensual behaviors met the legal definition of sexual assault, and whether such behaviors should be reported to police. Results indicated students acknowledged the nonconsensual behaviors as criminal; however, gaps were identified between awareness that the acts were criminal and willingness to report to police. Findings demonstrate a need for continued efforts for sexual assault prevention among college students.


2016 ◽  
Vol 19 (1) ◽  
pp. 76-93 ◽  
Author(s):  
Lisa Fedina ◽  
Jennifer Lynne Holmes ◽  
Bethany L. Backes

Sexual assault is a pervasive problem on university and college campuses in the United States that has garnered growing national attention, particularly in the past year. This is the first study to systematically review and synthesize prevalence findings from studies on campus sexual assault (CSA) published since 2000 ( n = 34). The range of prevalence findings for specific forms of sexual victimization on college campuses (i.e., forcible rape, unwanted sexual contact, incapacitated rape, sexual coercion, and studies’ broad definitions of CSA/rape) is provided, and methodological strengths and limitations in the empirical body of research on CSA are discussed. Prevalence findings, research design, methodology, sampling techniques, and measures, including the forms of sexual victimization measured, are presented and evaluated across studies. Findings suggest that unwanted sexual contact appears to be most prevalent on college campuses, including sexual coercion, followed by incapacitated rape, and completed or attempted forcible rape. Additionally, several studies measured broad constructs of sexual assault that typically include combined forms of college-based sexual victimization (i.e., forcible completed or attempted rape, unwanted sexual contact, and/or sexual coercion). Extensive variability exists within findings for each type of sexual victimization measured, including those that broadly measure sexual assault, which is largely explained by differences in sampling strategies and overall study designs as well as measures of sexual assault used in studies. Implications for findings and recommendations for future research on the prevalence of college-based sexual victimization are provided.


2018 ◽  
Vol 25 (7) ◽  
pp. 862-881 ◽  
Author(s):  
Mieko Yoshihama ◽  
Tomoko Yunomae ◽  
Azumi Tsuge ◽  
Keiko Ikeda ◽  
Reiko Masai

This study reports on 82 unduplicated cases of violence against women and children after the Great East Japan Disaster of March 2011. Data were collected using a structured questionnaire from informants who worked with the disaster-affected populations. In addition to domestic violence, reported cases involved sexual assault and unwanted sexual contact, including quid pro quo assault perpetrated by nonintimates. Perpetrators often exploited a sense of fear, helplessness, and powerlessness and used threats to force compliance with sexual demands in exchange for life-sustaining resources. Findings point to the urgent need to develop measures to prevent and respond to postdisaster gender-based violence.


2020 ◽  
Vol 17 (34) ◽  
pp. 93-111
Author(s):  
Saule Amangeldievna MUSSABEKOVA

Identifying semen stains on clothing and bedding is a crucial component in investigating cases of sexual assault. In some cases, clothing and bedding have already been washed before they were removed and sent for forensic examination. There is insufficient data on best practices for handling traces of semen on clothes after washing. This work aimed to study the possibility of identifying traces of semen on clothes after washing using widely used techniques. To simulate typical physical evidence, donor semen samples were applied to pieces of clothing made from various fabrics. The clothes were washed under multiple conditions (with the help of nonbiological and biological (enzyme-containing) agents, and across numerous washing machines). After washing, the washing stains were characterized by the presence of fluorescence signal, spermatozoa (Koren – Stokis method), the determination of acid phosphatase, prostate-specific antigen and semenogelin, as well as the results of serological research according to the AB0 system and DNA analysis. Clothing analysis using these methods was shown to be effective in experimental conditions. However, the presence of enzymes as detergent components designed to destroy biogenic stains significantly affect the results of the identification of semen stains. It has been established that the full genetic profile can be obtained from semen stains even after washing three times. Different strategies are needed to detect, select and identify semen stains depending on the circumstances of a case. It is recommended to examine clothing and bedding, even if the specimens were previously washed.


Author(s):  
Patricia A. Melton

Sexual assault is a violent crime that traumatizes individual victims and endangers entire communities. Every victim of sexual assault deserves an opportunity for justice and access to the resources they need to recover from this trauma. In addition, many perpetrators of sexual assaults are serial offenders who also commit other violent crimes, including armed robberies, aggravated assaults, burglary, domestic violence, and homicides, against strangers and acquaintances. Criminal justice agencies have the power to create a strategic, sustainable plan for an improved response to sexual assault that aligns with current best practices and national recommendations. In this document, we define an “improved response” as an approach that supports effective investigation and prosecution of sexual assault cases, holds perpetrators accountable, and promotes healing and recovery for victims of sexual assault. This guide will help prosecutor and law enforcement agencies create a process with milestones, goals, and suggested actions, all designed to support a successful and sustainable approach for addressing sexual assault cases. Improving the criminal justice system’s response to sexual assault ultimately improves public safety and promotes trust between criminal justice agencies and the communities they serve.


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