Postmortem Computed Tomography in Firearm Homicides: A Retrospective Case Series,

Postmortem computed tomography (PMCT) is integrated into the evaluation of decedents in several American medical examiner offices and medicolegal death investigative centers in many other countries. We retrospectively investigated the value of PMCT in a series of firearm homicide cases from a statewide centralized medical examiner’s office that occurred during 2016. Autopsies were performed or supervised by board-certified forensic pathologists who reviewed the PMCT scans prior to autopsy. PMCT scans were re-evaluated by a forensic radiologist blinded to the autopsy findings and scored by body region (head–neck, thoracoabdominal, and extremities). Injury discrepancies were scored using a modified Goldman classification and analyzed with McNemar’s test. We included 60 males and 20 females (median age 31 years, range 3–73). Based on PMCT, 56 (79.1%) cases had injuries relevant to the cause of death in a single body region (24 head–neck region, 32 thoracoabdominal region). Out of these 56 cases, 9 had a missed major diagnosis by PMCT outside that region, including 6 extremity injuries visible during standard external examination. Yet all had evident lethal firearm injury. We showed that PMCT identifies major firearm injuries in homicide victims and excludes injuries related to the cause of death in other regions when a single body region is injured. Although PMCT has a known limited sensitivity for soft tissue and vascular pathology, it can be combined with external examination to potentially reduce or focus dissections in some of these cases depending on the circumstances and medicolegal needs.     

制度差异与制度创新:多元制度互动下的大湾区改革

在一国两制的背景下,香港、澳门与内地之间的制度差异如何影响粤港澳大湾区的发展?学界对此仍关注不足。论文基于制度主义理论,构建了"制度差异-张力-制度创新"的理论框架,以深圳前海自贸区的工程建设管理制度改革为案例,分析了制度差异推动改革创新的机制。研究发现,不同的制度逻辑形塑行动主体的认知与行为,因此多元制度在互动中能够产生张力,进而激发行为主体的能动性,促使其反思、设计新的制度、采取改革行动,最终促成制度创新。中国内地与港澳的制度在"一国两制"方针下得以多元共存,制度差异在粤港澳密切互动中产生的张力是大湾区改革的创新源泉,使大湾区在国家改革与发展大局中发挥重要作用。     

Acute myoglobinuria as a fatal complication of heroin addiction

A fatal case of myoglobinuria complicating heroin addiction is described. Clinically the patient had no overt symptoms of rhabdomyolysis. Pathologists should be alerted to this rare complication in heroin addicts who die of no apparent cause. The antimyoglobin immunoperoxidase technique is useful in confirming the diagnosis.     

Restriction fragment length polymorphism analysis of forensic science casework in the People's Republic of China.

Restriction fragment length polymorphism (RFLP) analysis for the purpose of individualization is now being used in casework in the People's Republic of China. This report describes the use of the multilocus minisatellite probe 33.15 to solve three cases, including two homicides and a rape. In the third case, fetal tissue was analyzed to prove that the alleged rapist was, in fact, the father. In each case, analysis of deoxyribonucleic acid (DNA) resulted in a positive match. The probability of chance association of the DNA fingerprint was calculated as 5.6 x 10(-12), which is similar to the figures reported in the literature.     

英国的调解制度--近期发展

本文分析了英国近来的一些案例,介绍了英国在采取非诉方法解决争议方面的最新发展,强调了法院在一些案件中的态度.     

Quantitative analysis of chlorpromazine by electron spin resonance (ESR) spectroscopy

A simple and sensitive method is described for quantitative analysis of chlorpromazine in blood, serum, urine and tissue homogenate. The chlorpromazine cation radical produced by adding perchloric acid and 2,3-dichloro-5,6-dicyano-p-benzoquinone to the sample can be detected by the ESR method at room temperature. The sensitivity limit is 10 ng, that is, 20 μl of the solution containing 0.5 μg chlorpromazine/ml. The time needed for the measurement is within 10 min. The chlorpromazine radical thus produced is very stable; for example, 95% of the radical was observed after 24 h. The advantage of this method is discussed by comparing with the ordinary spectrophotometry which requires the purification of the sample.     

现场指印的碘熏显现法后期固定增强新技术研究

富含PVA的固体胶和液体胶是一种高效快捷的碘变色剂,能显著改善碘熏指印的后期染色固定效果.经比对实验,用富含PVA的固体胶和液体胶染色固定碘熏指印具有染色灵敏度高、反差大、固定迅速、保存时间长、安全无毒、操作简便、材料易得等优点,在改善碘熏指印的质量上及其它方面都明显优于传统的碘熏指印固定技术,且实用性强,更适合现场操作,完全可以取代传统的碘熏指纹固定技术.     

Acidic and neutral drugs screen in blood with quantitation using microbore high-performance liquid chromatography–diode array detection and capillary gas chromatography–flame ionization detection

Blood previously acidified with aqueous saturated ammonium chloride solution was extracted with ethyl acetate. The dried extract was subjected to acetonitrile–hexane partition. The acetonitrile portion was analysed for the presence of acidic and neutral drugs by HPLC–DAD (200 mm×2.1 mm I.D. microbore ODS-Hypersil column) and GC–FID (25 m narrow-bore×0.25 mm I.D. HP-5 column with 0.33 μm film thickness). The protocol was found to be suitable for both clinical toxicology (including emergency toxicology) and postmortem toxicology. At least 66 drugs of interest were unequivocally identified by RRTs (HPLC) and UV spectra (DAD) match while another 12 were unequivocally identified by double RRTs match (HPLC and GC). Quantitation was facilitated by incorporating calibration blood standards in each assay batch. The five drugs most commonly encountered in clinical blood specimens (1150 cases) were: paracetamol (47.4% of the cases); chlormezanone (6.6%), theophylline (1.74%), naproxen (1.65%) and mefenamic acid (1.56%). The following drugs were detected in toxicologically significant quantities in postmortem blood specimens (245 cases): phenobarbitone (1.22% of the cases), naproxen (0.82%), chlormezanone (0.82%), theophylline (0.82%), carbamazepine (0.41%) and paracetamol (0.41%).     

公安院校刑事技术实验课分层次教学法研究

刑事技术是一门专业性和实践性非常强的综合应用型技术。刑事技术本科专业教学如何更好地适应公安基层实践对高层次专门人才的需求,培养出一大批善于学习、实践能力强并具有一定创新精神的应用人才是当前形势下公安院校深化教学改革,提高教学质量,全面推进大学生素质教育的研究热点之一。笔者从公安基层刑事技术实践对刑事技术专业人才的需求特征及技术员职业岗位和公安刑事技术实验教学改革要求出发,就实施以培养学生的动手操作能力、综合应用能力和实践创新能力为目标的分层次教学法的人才培养方案,处理好强化基本功的训练、突出综合应用能力和实践能力的培养、支持引导激励学生开展探索性的实践活动等三个层次关系及切实保障刑事技术实验课分层次教学法实施进行研讨。