人质危机事件战术性谈判处置模式研究

劫持人质事件中警队谈判组与攻击单位是处置的核心力量,现场规范架构中谈判小组与攻击单位的配合是处置的关键所在,在和平谈判无望或情况危机时,谈判小组通过及时转入战术性谈判来提供准确情报与引导攻击行动,在保障多方安全的同时可提高攻击效率,最大可能减少伤亡与降低事件处置成本。     

QQ取证及其司法鉴定方法研究

简要介绍QQ取证及其司法鉴定研究的发展现状。分析QQ消息传输协议、数据库文件结构、Msg2.0.db文件的加密机制,重点研究QQ聊天记录及其他证据信息获取的思路和方法。在结合QQ取证鉴定案例的基础上,提出将手机与QQ进行融合取证的新思路,并对QQ取证及其司法鉴定的发展方向进行展望。     

The changes of fourier transform infrared spectrum in rat brain

Estimation of the time since death (postmortem interval [PMI]) is one of the most difficult problems in forensic investigations, and many methods currently are utilized to estimate the PMI. The goal of this study was to investigate the changes of attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectra of rat brain from postmortem time 0-144 h. The intensity ratios of major absorbance bands were examined (I(1066)/I(1392), I(1168)/I(1392), I(1234)/I(1454), I(1301)/I(1392), I(1647)/I(2956), I(2921)/I(2850), and I(1647)/I(1539)). The spectra of rat brain displayed prominent changes with increasing PMI. The band at 2871 and 1737 per cm became weak with the time increasing and even disappeared at postmortem 96 and 72 h, respectively. A close linear correlation was shown between the relative absorption intensity and the PMI, and the I(1234) /I(1454) offered a stronger correlation (r = 0.973). Our results indicate that ATR-FTIR spectroscopy may be a useful technique for estimating the PMI.     

Personal identification of cold case remains through combined contribution from anthropological, mtDNA, and bomb-pulse dating analyses

In 1968, a child's cranium was recovered from the banks of a northern Canadian river and held in a trust until the "cold case" was reopened in 2005. The cranium underwent reanalysis at the Centre for Forensic Research, Simon Fraser University, using recently developed anthropological analysis, "bomb-pulse" radiocarbon analysis, and forensic DNA techniques. Craniometrics, skeletal ossification, and dental formation indicated an age-at-death of 4.4 ± 1 year. Radiocarbon analysis of enamel from two teeth indicated a year of birth between 1958 and 1962. Forensic DNA analysis indicated the child was a male, and the obtained mitochondrial profile matched a living maternal relative to the presumed missing child. These multidisciplinary analyses resulted in a legal identification 41 years after the discovery of the remains, highlighting the enormous potential of combining radiocarbon analysis with anthropological and mtDNA analyses in producing confident personal identifications for forensic cold cases dating to within the last 60 years.     

Genetic and chemical components analysis of Papaver setigerum naturalized in Korea

Of the 110 species of genus Papaver, only Papaver somniferum and P. setigerum are controlled poppies in Korea. All poppy samples share similar morphology therefore it is important to check if they contain controlled substances such as morphine and codeine for forensic purpose. Since the alkaloid content of Papaver plants varies according to their growing stage, chemical components analysis alone is not enough to identify exact species. In 2010, hundreds of poppy plants suspected to be P. somniferum were found in Jeju Island, South Korea. They had a slightly different but overall similar appearance to P. somniferum. Using GC-MS analysis, codeine, rhoeadine, papaverine, protopine, noscapine, setigeridine and trace amounts of morphine were detected in these samples. Although their chemical components were different from what has been described in literatures for P. setigerum, they could be assumed to be P. setigerum based on their morphological features and GC-MS results. Also, chromosome numbers using their seeds showed 2n=44 and the numbers were in accordance with those of P. setigerum. Nucleotide substitution or insertion/deletion of ITS (internal transcribed spacer), 18S rRNA (ribosomal RNA), rbcL (large subunit of ribulose 1,5-bisphosphate carboxylase), trnL-trnF IGS (intergenic spacer), trnL intron and psbA-trnH were assessed as universal genetic markers for P. setigerum. Also, genetic analysis using six target genes involved in the biosynthesis of benzylisoquinoline alkaloids, including TYDC (tyrosine/dopa decarboxylase), SAT (salutaridinol-7-O-acetyltransferase), BBE (berberine bridge enzyme), COR (codeinone reductase), CYP80B1 ((S)-N-methylcoclaurine 3'-hydroxylase) and NCS (norcoclaurine synthase) were tested as Papaver-specific genetic markers by the existence of their PCR products. From the results, the sequences of the 6 universal genetic markers and 6 Papaver-specific genetic markers for P. setigerum were identified and then Genbank accession numbers of them were registered in NCBI. Also, the trnL intron and psbA-trnH nucleic acid sequences of the 7 Papaver species were identified and registered.     

法律修辞在中国兴起的背景及其在司法审判中的作用

中国的社会转型使我们处于一个高度不确定的风险环境中,这为以不确定性因素为逻辑起点的法律修辞研究提供了丰富的现实土壤。但法律修辞学在中国学界被热捧的理论基础,并不像它在西方社会复兴时那样坚实。当前中国社会并没有经历法律形式主义极度发达的严格法治时代,没有形成严格守法的习惯,缺乏遏事遵守规则的意识。因此,立足于省略三段论推理、强调理性说服功能的法律修辞研究,必须在崇尚程序规制的法律论证框架下使用,才能坚持司法审判的首要目标是依法正确判决,然后才是通过修辞的合理包装送达当事人和社会。     

医疗管理损害责任与法律适用

医疗管理损害责任是《侵权责任法》规定的医疗损害责任中的一种具体类型,与医疗伦理损害责任、医疗技术损害责任和医疗产品损害责任一道,构成医疗损害责任的类型体系。医疗管理损害责任应当适用《侵权责任法》第54条的规定确定赔偿责任,但与该法第34条第1款规定的用人单位责任构成竞合关系,受害患者可以根据自己的利益选择法律。     

新生代农民工犯罪生存空间之考察——以社会不公平竞争为视角

2010年2月1日,中央一号文件首次明确提出"新生代农民工"的概念,旨在当今现实条件下努力促进新生代农民工的市民化。改革开放至今,农民工已步入第二代,即"新生代农民工",他们在促进城市经济发展过程中发挥了重要作用,但新生代农民工犯罪问题也成了社会的顽疾。本文在研究这一群体特点、犯罪情况的基础上,从社会根源、社会原因以及个人因素等方面进行综合分析,在社会不公平竞争视角下对新生代农民工犯罪生存空间进行探索,研究不公平竞争与其犯罪的关联,以期发展三元协调促进的防控理论,并寻求消除不公平竞争机制,铲除新生代农民工犯罪土壤的对策。