Analyzing Approaches to the Backlog of Untested Sexual Assault Kits in the U.S.A.

Motivated by the debate over how to deal with the huge backlog of untested sexual assault kits in the U.S.A., we construct and analyze a mathematical model that predicts the expected number of hits (i.e., a new DNA profile matches a DNA sample in the criminal database) as a function of both the proportion of the backlog that is tested and whether the victim–offender relationship is used to prioritize the kits that are tested. Refining the results in Ref. (Criminol Public Policy, 2016, 15, 555), we use data from Detroit, where government funding was used to process ≈15% of their backlog, to predict that prioritizing stranger kits over nonstranger kits leads to only a small improvement in performance (a 0.034 increase in the normalized area under the curve of the hits vs. proportion of backlog tested curve). Two rough but conservative cost‐benefit analyses—one for testing the entire backlog and a marginal one for testing kits from nonstranger assaults—suggest that testing all sexual assault kits in the backlog is quite cost‐effective: for example, spending ≈$1641 to test a kit averts sexual assaults costing ≈$133,484 on average.     

性侵幼女犯罪相关问题探析

与世界主要国家对性侵未成年人犯罪的处罚相比,嫖宿幼女罪的刑罚不轻。嫖宿幼女罪没有否定幼女性“自愿”的无效性,没有把幼女称为卖淫女,不存在道德歧视和二次伤害问题。嫖宿幼女罪体现了我国刑法对幼女性权利的格外保护,废除嫖宿幼女罪的根据不成立。     

我国职场性骚扰雇主侵权责任研究

职场性骚扰严重侵害了雇员的权益,同时也扰乱了职场秩序.从民事侵权理论的角度,对雇主侵权责任的形态、选择进行对比与研究,借鉴一些发达国家的经验,建议我国制定《劳动法修正案》对职场性骚扰进行规制和责任承担,同时提倡欧美国家的工作单位内部防止性骚扰制度,来有效防治性骚扰.     

The Complexity of Public Attitudes Toward Sex Crimes

Previous research suggests that public opinion about crime is nuanced, as it has been found to vary greatly depending upon the type of questions asked and the amount of information provided. Few have similarly examined the complexity of public attitudes specifically about sex crimes. A survey was administered to a sample of U.S. residents utilizing the factorial survey method. The results suggest that specific details about the offense, offender, and victim had a significant effect on perceptions. The findings point to discrepancies between policy and public opinion, as well as to the importance of educating the public about the realities of sexual offending and victimization.     

Feminist Routine Activity Theory and Sexual Assault Victimization: Estimating Risk by Perpetrator Tactic Among Sorority Women

The present study investigated sexual assault risk among sorority women enrolled at a Northwestern university. Bivariate comparisons were made between 282 women and demonstrated significant risk for unwanted sex facilitated by verbal coercion, as well as completed rape as a result of threats or force for sorority women compared with nonaffiliates. The subsample of 89 sorority women was then assessed to examine risk factors for sexual assault victimization. Separate multivariate binary logistic regression models were estimated for verbal coercion resulting in unwanted sex, intoxicated sexual assault, and completed rape as a result of threats or force. Results revealed that number of lifetime consensual sex partners was positively and significantly correlated with all three forms of sexual victimization, as was more frequent attendance at weekly coed Greek-sponsored events among sorority women. In addition, sorority women with friends who peer-pressured them to have sex with fraternity men faced increased odds of intoxicated sexual assault compared with counterparts. Implications for prevention and future research are discussed.     

From crime scene to courtroom: A review of the current bioanalytical evidence workflows used in rape and sexual assault investigations in the United Kingdom

Sexual assault casework requires the collaboration of multiple agency staff to formalise an investigative pipeline running from crime scene to court. While the same could be said of many other forensic investigations, few require the additional support of health care staff and the combined forensic involvement of body-fluid examiners, DNA experts and analytical chemists. The sheer amount of collaborative effort between agencies is laid out through a detailed examination of the investigative workflow from crime scene to courtroom with each step in the pipelines detailed and discussed. Beginning with a review of sexual assault legislation in the United Kingdom this article details how sexual assault investigations are initiated by police and supported by sexual assault referral centre (SARC) staff who are often the first responders providing primary healthcare and patient support to victims while simultaneously collecting and assessing forensic evidence. Detailing the myriad of evidential material that can be documented and collected at the SARC, the review identifies and categorises key forensic tests to first detect and identify body-fluids recovered from evidence through to the secondary analysis of DNA to help identify the suspect. This review also focusses on the collection and analysis of biological material used to support the allegation that the sexual activity was non-consensual and provides a breakdown of common marks and trauma as well as a review of common analytical methods used to infer Drug Facilitated Sexual Assault (DFSA). The culmination of the investigative pipeline is discussed by reviewing the Rape and Serious Sexual Assault (RASSO) workflow used by the Crown Prosecution Service before providing our thoughts on the future of forensic analysis and possible changes to the described workflows.     

Determination of Sex: Interest of Frontal Sinus 3D Reconstructions

Frontal sinuses (FSs) have been studied in radiology, anthropology, and forensic anthropology. This study aimed to determine whether it was possible to predict the age and sex of an individual using FS volume. Sixty‐nine anonymized CT scans were imported to MIMICS 10.01^® software (Materialise N.V.), and each FS volume was calculated in mm³. There was an absence of significant difference between right and left FS volume (p = 0.173) and an absence of correlation between age and FS volume (Pearson's test; p = 0.705). Sexual dimorphism was significantly different (p = 0.001). However, the most discriminant datum for determining sex was found to be the total FS volume (sum of an individual's right and left FS volumes) with linear discriminant Fisher's function coefficients of ?2.759 for the male group and ?1.275 for the female group. With this model, 72.5% of our sample was correctly classified according to sex.     

Metric Sex Determination of the Human Coxal Bone on a Virtual Sample using Decision Trees

Decision trees provide an alternative to multivariate discriminant analysis, which is still the most commonly used in anthropometric studies. Our study analyzed the metric characterization of a recent virtual sample of 113 coxal bones using decision trees for sex determination. From 17 osteometric type I landmarks, a dataset was built with five classic distances traditionally reported in the literature and six new distances selected using the two-step ratio method. A ten-fold cross-validation was performed, and a decision tree was established on two subsamples (training and test sets). The decision tree established on the training set included three nodes and its application to the test set correctly classified 92% of individuals. This percentage was similar to the data of the literature. The usefulness of decision trees has been demonstrated in numerous fields. They have been already used in sex determination, body mass prediction, and ancestry estimation. This study shows another use of decision trees enabling simple and accurate sex determination.