Fatal suicidal injury of a radiocephalic arteriovenous fistula

A 59-year-old man was found dead in his living room. His body was covered with blood, but the only injury found was a 31-mm-long, transverse incision on the radial surface of the left forearm. Autopsy revealed that the injured vessel was an enlarged cephalic vein from a radiocephalic arteriovenous fistula (RC-AVF) that had been created 23 years before for hemodialysis. Cephalic vein injury is usually not fatal, but circumstantial evidence, autopsy, and histological findings suggested that hemorrhagic shock and death occurred within a short time after the self-inflicted incised wound. This may be explained by the blood flow rate in the RC-AVF, which can reach 12 ml/s; this is 25 times higher than the normal cephalic vein blood flow.     

Stress-related temporary hearing loss--evaluation of bio-humoral parameters: forensic and criminological applications

The body-alarm reaction results from the activation of hypothalamic-pituitary-adrenal axis, which can lead to physio-psychological phenomena such as an exclusion/occlusion of the sense of hearing. One hypothesis to explain this alteration consists in a hydromechanical dysfunction of the internal ear attributable to antidiuretic hormone. In this study, we evaluated the perception of acoustic stimuli administered in stressful conditions in 14 phobic patients and in 20 healthy subjects, in order to assess the influence of stress on perceiving capabilities. We also measured the concentration of salivary cortisol and IL-1β and neurovegetative parameters to objectivise and quantify the physiological reactions. Our results show a worse perception of the frequencies of the human voice under stress; these findings could have a dual value: in the legal field, concerning criminal liability, and on the operative context, regarding the efficiency of verbal communication among law enforcement officers in situations inducing intense emotional stress.     

Driving under the influence of amphetamine-like drugs

Scientific opinions differ whether the use of stimulants causes deterioration in driving skills. In 1857 of 8709 cases of driving under the influence of drugs, amphetamine-like drugs (amphetamine, methamphetamine, and methylendioxyamphetamine) were present either alone or together with other licit or illicit drugs. In 338 cases, amphetamines were the only psychoactive substance group in plasma at mean, median, and highest concentrations of 0.18, 0.12, and 1.05 mg/L, respectively. A widespread opinion is that after the consumption of amphetamines, centrally stimulating effects with corresponding consequences on safe driving are expected. In contrast, many cases were observed that rather suggested an influence of centrally sedating substances when considering the psycho-physical conditions. Relations between concentration and effect could not be established. The apparent sedation is probably the consequence of sleep deprivation during an amphetamine binge and the after-effects of the drug.     

Conducted Energy Devices (CEDs) and Citizen Injuries: The Shocking Empirical Reality

As one of the contemporary additions to the use of force spectrum, conducted energy devices (CEDs) have been surrounded by controversy. Such concerns have fueled a number of studies, many of which have attempted to examine the relationship between CEDs and citizen injuries. This limited body of research, however, has produced inconsistent results and suffers from a number of documented drawbacks. Drawing on data collected as part of a national multi‐agency use of force project, the current study analyzes nearly 14,000 use‐of‐force incidents across seven agencies, over 2,600 of which involve a CED, to assess the potential impact of CEDs on citizen injuries. In doing so, a series of multivariate statistical models are employed that isolate CED cases and compare them to a number of both hands‐on and weapon‐based tactics. Unlike previous research, which often highlights the beneficial aspects of CEDs in relation to injuries, our findings generally show an increased risk between the use of CEDs and citizen injuries. As such, more research is needed before deriving any conclusions as to the “safeness” of CEDs, especially in relation to the choice between using a CED or an alternative means of dispute resolution (either hands‐on physical force or another weapon).     

醉驾:“一律入刑”还是“区别对待”

如何合理划定"醉驾"犯罪圈的大小,"一律入刑"与"区别对待"两种见解存在实质性分歧。罪刑法定原则作为刑事司法不可逾越的屏障,司法机关应该通过"一律入刑"呼应其明确性要求,同时限制司法机关的权力扩张;主观主义与客观主义作为两种不同的解释方式,在实践选择的位阶上应该以文本映射的主观主义优先适用;刑法总分体系需要刑事立法与司法进行一体化贯彻,在刑事立法已然兼顾总则要求的前提下不能通过"区别对待"再次限缩分则罪名的适用范围;"一律入刑"的主张不违背宽严相济刑事政策的内在精神,刑事政策的刑法化要求刑事司法必须坚守这一法治立场。     

DNA Typer~(TM)15 plus直扩试剂盒在DNA数据库建设中的应用

目的测试DNA TyperTM15 plus直扩试剂盒的技术性能指标,评价其在DNA数据库建设中的应用价值。方法采用DNA TyperTM15 plus试剂盒,并使用IdentifilerTM和DNA TyperTM15试剂盒进行比较,设定不同体系和引物量、不同退火温度和循环次数以进行方法验证;设定不同模板量标准品、不同比例混合样本,取猪、狗、兔等动物的血液样品,血痕、骨骼、唾液斑等常见检材样本以及不同建库样本,以验证试剂盒灵敏度、特异性、稳定性以及混合样本、常见检材及建库样本的检测能力。结果直扩试剂盒分型结果准确,重复性好,灵敏度可达0.125ng,不同批次间试剂检测结果稳定,对不同检材有很好的适应性。10μL扩增体系时FTA卡和加强型血液采集卡取样直径应为0.5mm,而血滤纸、血液采集卡样本和经典型血液采集卡取样直径应为1.0mm。结论 DNA TyperTM15 plus直扩试剂盒的性能可以满足DNA数据库建设及检案的需要,可在相关实验中选择使用。     

GoldeneyeTM 20A-M试剂盒在数据库建设中的应用

目的 研究GoldeneyeTM 20A-M试剂盒在DNA数据库建设中的应用.方法 针对血滤纸特性,优化不同条件血痕样品的取样量、扩增循环次数,缩短PCR扩增时间,以建立适合批量样品直接快速扩增检验的方法,并将其应用于1 200份数据库样品的检验中.结果 确定了批量样本检验的最适取样量和扩增循环次数,建立了快速扩增反应程序,1 200份样品的直接快速扩增检验成功率为98.4％,批量检验92份样品(1板)从取样到电泳完成只需6h.结论 GoldeneyeTM 20A-M试剂盒的应用,免去DNA提取过程,方法简单、快速、获得信息量大,适用于DNA数据库建设的需要.     

破解任务繁重与警力紧张矛盾的思考

随着“高铁时代”的到来,铁路公安机关面临的形势任务和警力需求之间的矛盾更加凸显,警力资源结构亟待调整。对此,只有积极致力于警力无增长改善,不断努力探索破解任务繁重与警力紧张之间矛盾的有效途径,从思想理念、用警机制、工作模式、素质建设、综合保障等全方位推进对铁路民警队伍整体的优化,才能从根本上解决这一突出问题。     

县级财政科技投入结构及其动力研究——基于安徽省C县的实证调查

县域财政科技投入主要体现为财政局拨付、科技局统筹管理的分配模式,但农林等其他县直单位同样也存在科技投入。县本级科技支出居主导地位,其他资金主要来自于上级部门的科技专项。科技推广体系呈现以县级科技集群为轴心的向下辐射形态,与企业、各类生产合作社、个人发生复杂的供需互动,相应对各类需求主体也产生不同的效益。以科技考核竞争、“发展一晋升”竞争、建楼面子之争和邻区比对等构成的混合竞争系统,是影响县域财政科技投入的主要动力。     

醉酒驾驶的规范理解及情景预防——以犯罪学为视角

刑法修正案八规定了“危险驾驶罪”,有关醉驾的刑法规范主要体现了刑法保护法益前移与抽象危险犯的立法精神。面对社会上日益严重的醉酒驾驶情况,运用刑法理论中的危险犯和法益侵害概念并不能有效达至减少风险的发生,确保交通安全的理想效果。超越规范层面的惩罚醉驾的政策性与风险防治因素,为犯罪学中的情境预防理论应用于保障社会公共安全提供了可寻的依据。从具体犯罪的预防出发思考减少行为人实施犯罪的机会,应用情境预防理论控制醉驾的发生是一条可行路径。