The marriage license as a hitting license: A comparison of assaults in dating,cohabiting, and married couples

There are many studies of marital and dating violence. However, methodological differences between these studies make it difficult to determine differences in the nature and extent of physical assault between marital status groups. This paper helps fill that gap by analyzing data from two surveys: a study of 526 dating couples at a large midwestern university, and a study of a national probability sample of 5005 married and 237 cohabiting couples. The results show that cohabiting couples have a higher rate of assault than dating and married couples. These findings persist after controls for age, education, and occupational status are introduced. Violence is also more severe in cohabiting than dating or married couples. A number of factors may account for the more frequent violence in cohabiting relationships. These include social isolation, the issue of autonomy and control, and the investment in the relationship.     

对国内反恐防暴武器发展的几点思考

新形势下,恐怖活动产生了许多新的特点。目前我国现有的反恐防暴武器装备已不能满足现实斗争的需要,应尽早制定反恐防暴武器发展规划,挖掘现有武器潜力,努力研制发展先进的装备,以适应现实斗争的需要。     

Social media video analysis methodology for sarin exposure

As social media becomes increasingly ubiquitous, many events are recorded and released on social media platforms, including chemical weapon attacks. We develop an objective tool in order to evaluate brief and unstructured social media videos for analysing sarin exposure from a civilian medical pathology perspective. We developed and validated this new questionnaire using a standardized procedure that includes content domain specification, item pool generation, content validity evaluation, a pilot study, and assessment of reliability and validity. In total, 51 sarin attacks and 48 matched videos were analysed. Cronbach’s α for all 20 items was 0.75, which indicates adequate internal reliability. The test–retest reliability was 0.96, which indicates good internal reliability. The inter-observer intraclass correlation coefficient was 0.97. After verifying sampling adequacy with the Kaiser–Meyer–Olkin measure and the factorability of the items with Barlett’s test of sphericity, a factor analysis was performed. According to the principal axis factoring, a six-factor solution explained 51.86% of the total variance. The receiver-operating characteristic curve analysis showed that the Video Score Questionnaire has a sensitivity of 0.817, a specificity of 0.478, and an efficiency of 65.3. Therefore, the Video Score Questionnaire is reliable and valid for evaluating sarin attacks from brief and unstructured social media videos.

Key points

• Chemical weapons are still used as a method of warfare.
• Social media videos are an important source of information.
• We developed a validated scale which can analyse sarin exposure in short and unstructured videos.

     

渐进牌照式训练考核体系——我国警察武器使用训练新模式的构建

进入新世纪以来,警察武器使用训练及考核有了更新的需要。为适应这种变化,对国内警察武器使用的训练模式进行了深入的调查研究,参考国际上先进的武器使用训练理念,提出了以安全理念和安全操作规范为核心,以实战需求为目的,以武器操作为主要训练内容的渐进牌照式训练、考核系统,为国内警察武器使用训练模式创新提出了更为符合时代发展的构想。     

Alcohol and Parasomnias: The Statistical Evaluation of the Parasomnia Defense in Sexual Assault,Where Alcohol is Involved

Sleep sex may be a defense for alleged sexual assault. The International Classification of Sleep Disorders (ICSD3) states: “Disorders of arousal should not be diagnosed in the presence of alcohol intoxication… The former [alcohol blackouts] are exponentially more prevalent.” A panel member of ICSD3, quoting ICSD3 asserts: “alcohol intoxication should rule out a sleep-walking defense”. This implies extremely strong support for a prosecution hypothesis (H_p) over a defense hypothesis (H_d). I use Bayesian methodology to evaluate the evidential probity of alcohol intoxication. The likelihood ratio, LR, measures the amplification of prior odds of guilt, . By Bayes' theorem, . I use data from cross-sectional studies of sexual assault and prevalence of alcohol use, in college students, with data from longitudinal studies, and data from the epidemiology of parasomnias to evaluate LR (alcohol). LR ~1.5 or 5, depending whether alcohol does, or does not, increase the risk of parasomnias. The proposition of extremely strong support for H_p implies a LR ~1,000,000, so the proposition in ICSD3 is not supported by formal analysis. The statistical reasoning in ICSD3 is unclear. There appears to be inversion of the Bayesian conditional (confusing intoxication given assault, and assault given intoxication) and failure to evaluate alcohol intoxication in H_d. Similar statistical errors in R. v Sally Clark are discussed. The American Academy of Sleep Medicine should review the statistical methodology in ICSD3.     

有效提升公安民警使用武器技能的对策

警察使用武器打击犯罪是法律赋予的警察强制手段的最高层次。为了在警务实战中有效地使用这一强制手段,保护人民群众生命、财产和警察自身的安全,每个警察都应熟练掌握武器使用技能。而当前我国公安民警使用武器技能的现状却不容乐观,不少地方的民警是用而不练或练而不精,甚至不用也不练,这就给民警执法安全埋下了严重隐患,甚至因此发生流血、牺牲的个案。公安机关的各级领导应充分重视民警武器使用训练,教官应更新观念,提升执教水平,加强训练管理,认真严格施教,科学、有效地提升民警的武器使用技能,最大限度地减少民警伤亡。     

Developmental validation of RSID™-Semen: a lateral flow immunochromatographic strip test for the forensic detection of human semen

Abstract: Tests for the identification of semen commonly involve the microscopic visualization of spermatozoa or assays for the presence of seminal markers such as acid phosphatase (AP) or prostate‐specific antigen (PSA). Here, we describe the rapid stain identification kit for the identification of semen (RSID?‐Semen), a lateral flow immunochromatographic strip test that uses two antihuman semenogelin monoclonal antibodies to detect the presence of semenogelin. The RSID?‐Semen strip is specific for human semen, detecting <2.5 nL of semen, and does not cross‐react with other human or nonhuman tissues tested. RSID?‐Semen is more sensitive with certain forensic evidence samples containing mixtures of vaginal secretions and semen than either of the commercially available PSA‐based forensic semen detection tests or tests that measure AP activity that were tested in parallel. The RSID?‐Semen kit also allows sampling a fraction of a questioned stain while retaining the majority of the sample for further processing through short tandem repeat analysis.     

Student Weapon Possession and the “Fear and Victimization Hypothesis”: Unraveling the Temporal Order

Using longitudinal data from nearly 4,000 students across 113 public schools in Kentucky, we attempt to unravel the direction of the relationships between student weapon carrying and various objective and subjective school‐crime experiences, including victimization, perceived risk of school victimization, and fear of school victimization. Overall, we found little support for the idea that fear and victimization increase weapon carrying, controlling for other theoretically important predictors, including delinquent offending. While 7th‐grade victimization was modestly associated with increased non‐gun weapon carrying in 8th grade, high perceptions of individual victimization risk in 7th grade decreased both subsequent gun and non‐gun weapon carrying. Fear of criminal victimization in 7th grade did not predict either type of subsequent (8th‐grade) weapon carrying. Though fear, risk, and victimization were inconsistent predictors of gun and non‐gun weapon carrying, we found strong and consistent support for the effects of weapon carrying on subsequent fear, risk, victimization, and offending. However, contrary to the implications of fear and victimization hypotheses, both gun carrying and non‐gun weapon carrying in the 8th grade increased fear of school crime, perceived risk, and actual victimization in the 9th grade. Implications of these findings for the applicability of a “weapons” or “triggering” effect are discussed.     

Does the Criminal Justice System Treat Domestic Violence and Sexual Assault Offenders Leniently?

We examine whether men who physically assault their female partners or who commit sexual assault receive more lenient treatment than offenders who commit other types of assaults. Analyses of the National Violence Against Women Survey do not support these hypotheses. Rather, they suggest that women who assault their male partners are particularly likely to avoid arrest. In addition, both men and women who assault partners are more likely to avoid conviction than other offenders. Evidence suggests that there has been an increase over time in rates of arrest and conviction for partner violence.