Y-haplotype screening of local patrilineages followed by autosomal STR typing can detect likely perpetrators in some populations

The male-specific, human Y-chromosomal short tandem repeats (Y-STRs) are very useful in forensic analysis and human evolution studies. The authors report two sexual crime cases in which the perpetrators were successfully traced using Y-haplotype screening of local patrilineages followed by autosomal STR typing. First, several main local patrilineages from local cases were investigated using Y-STR haplotyping, aimed to find the pedigrees whose haplotypes were identical or similar to those of the crime scene samples. Then, several key suspects were defined from the screened pedigrees, and autosomal STR typing was performed to identify the perpetrator of the crime. The application of Y-haplotype screening of local patrilineages followed by autosomal STR typing in these two cases demonstrates its usefulness for solving sexually related crimes in certain populations.     

Distorting Vicarious Liability

The note considers the decision of the Court of Appeal in Maga v The Trustees of the Birmingham Archdiocese of the Roman Catholic Church and analyses the application of the status based risk approach to vicarious liability in that case. It considers its application outside of the area of clerical sexual abuse, and also the role in vicarious liability of job conferred status which materially increases the risk of the commission of a tort, or helps to facilitate a tort.     

嫖宿幼女罪再思考——一种国际公约的视角

嫖宿幼女罪自其设立之时就在学者中间存有争议,近年来发生的几起影响较大的嫖宿幼女案,更将争论推向社会各界。在这些争论中,更多的意见是废除嫖宿幼女罪,将嫖宿幼女并人奸淫幼女,以强奸罪论处。从国际公约的视角来看,嫖宿幼女罪的罪名确属不当,然而,将嫖宿幼女合并于奸淫幼女的意见也值得商确,事实上也难以实现。综合考虑各种因素,建议废除嫖宿幼女罪,将嫖宿幼女当作强迫幼女卖淫,以强迫卖淫罪论处。     

Y-STRs in forensic medicine: DNA analysis in semen samples of azoospermic individuals

ABSTRACT: The incidence of rape has increased, especially in metropolitan areas, such as the city of São Paulo. In Brazil, studies about it have shown that the majority of this type of crime is committed by the relatives and persons close to the victim. This has made the crime more difficult to be denounced, as only 10% of the cases are reported to competent police authorities. Usually, cytological exams are carried out in sex crime investigations. The difficulty in showing the presence of spermatozoa is frequent, but it does not exclude the presence of male DNA. The absence of spermatozoa in material collected from rape victims can be due to several factors, including the fact that the agressor suffers from azoospermia. This condition can be the result of a successful vasectomy. As the majority of DNA in the ejaculation sample is from spermatozoa, there is much less DNA to be analyzed. This study presents the application of Y‐STRs (DYS19, DYS389I, DYS389II, DYS390, DYS391, DYS392, and DYS393) in DNA analysis of sperm samples from 105 vasectomized men. The study demonstrated a great variation in DNA concentration. DNA extraction and amplification was possible in all sperm samples even in the absence of spermatozoa. The same profile was observed, for each individual, from DNA extracted from blood, pre‐ and postvasectomy semen samples. The use of markers specific for Y chromosome in sex crime cases, especially in the absence of spermatozoa, is very important, mainly because in most situations there is a small quantity of the agressor's DNA in the medium and a large quantity of the victim's DNA.     

Ballots,Bargains, and Bombs: Terrorist Targeting of Spoiler Opportunities

Benjamin Netanyahu's come-from-behind victory over Shimon Peres in the Israeli national elections of May 1996, following an apparent intensification of Palestinian terrorism over the course of that spring, reminded observers of the political ramifications of terrorism. Since May 1996 was also the month in which Israel reentered Final Status negotiations with a Palestinian delegation in Taba, Egypt, the timing of this surge in violence encourages us to ask if terrorists regularly conceive of elections and rounds of negotiations as “spoiler opportunities,” or opportune times to undermine peaceful political processes. We address this question in the context of Israel's long‐running experience with elections, negotiations, and terrorism. We hypothesize that attacks resulting in fatalities are likely to increase in periods immediately surrounding Israeli general elections and key rounds of negotiations affecting the fate of the Palestinian population. Negative binomial event count analyses of the period 1970–2007 suggest that violent opponents indeed viewed the periods preceding negotiations and the ends of electoral cycles as “spoiler opportunities.”     

A Validation Study of the Langley et al. (2017) Decision Tree Model for Sex Estimation

Langley et al. (2017) developed a sex estimation decision tree utilizing two traditional cranial traits (glabella and mastoid) and a new trait: zygomatic extension. This study aimed to test the reliability of their zygomatic extension scoring method and validate their sex estimation method. Ordinal score data were collected from 281 male and female U.S. White and Black individuals. The five traditional cranial traits were collected from physical specimens, while zygomatic extension was scored from 3D cranial models. Intra‐ and interobserver analyses carried out on a subsample of 30 individuals indicate good agreement between zygomatic scores. The decision tree correctly sexed 71.5% of the sample, but a strong sex bias (94.2% correct for females, 49.3% correct for males) severely limits the utility of this method. The Walker (2008) and Stevenson et al. (2009) methods produced higher accuracy rates (80.8% and 82.6%, respectively), although these methods also produced sex and ancestry biases.     

Female sex offenders who abuse children whilst working in organisational contexts: offending,conviction and sentencing

To date, there has been very little research into the phenomenon of female-perpetrated institutional child sexual abuse (CSA). This study explored 71 cases of CSA perpetrated by women working with children, considered by UK police and courts between 2000 and 2016. Qualitative and quantitative content analysis was employed to examine court reports, professional regulatory body decisions, media reports and an online sentencing database in order to identify perpetrator and victim characteristics, the nature of the offending behaviour, modus operandi and criminal justice system responses. Findings indicate most women offended alone and had no previous criminal or employment records of concern. Victims were typically male and 15–16 years old. Most women received custodial sentences, typically of 2–3 years in length. Implications for policy and practice are also discussed.     

Moral disengagement and self-reported harassment proclivity in men: the mediating effects of moral judgment and emotions

Three online studies investigated the association between moral disengagement and men’s self-reported harassment proclivity. Participants (total N?=?336) were required to read a vignette depicting either quid pro quo harassment (studies 1 and 2) or hostile work environment harassment (study 3). A salience manipulation was used in each study to explore the causal directionality of this association. The mediating effects of moral judgment, negative affect (guilt and shame) and positive affect (happiness) about the harassment were also assessed as participants were asked to imagine themselves as the harassment perpetrator. Across the three studies, it was shown that moral disengagement had an indirect effect in predicting men’s proclivity to harass by lowering their moral judgment and negative affect about the harassment, conversely amplifying positive affect. Overall, the findings support social cognitive theory, indicating that moral disengagement may enable people to self-regulate their own behavioural inclinations to harass.