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.     

罪犯应否改造、能否改造、如何改造

对罪犯应该改造,是现代文明法治社会必须做出的选择.但这并不是罪犯能够改造的逻辑前提,在我们人类认识的视域内,只能认为有些罪犯可以改造,有些罪犯不能改造,而不能一概肯定或否定.对待如何改造罪犯的问题上,核心的是处理好监禁改造和社会化的关系、行为改造与思想改造的关系以及刚性改造与柔性引导的关系,虽然这些关系之间存在着悖论或难以兼顾的“根结”,但是还必须进行全方位的改造.于是我们可以得出复杂的人类社会的一条运行规则:为了国家发展和社会稳定这一大局,人类的行为有时并不一定以真理为基础,而服从于目的.     

涉外同性婚姻法律适用问题研究

世界范围内,同性婚姻为一些国家法律认可的事实,与中国大陆对该身份领域的变化,仅存于学者呼吁应保护少数人人权的现状,则提出了在中国大陆涉外同性婚姻的法律适用问题。依据我国"涉外民事关系法律适用法"的有关规定,同性结合存在的客观事实,医学上界定其不是一种疾病的科学论断,及公平与正义、且具有全球视野的、与时俱进的现代意识,我们在法律观念与法律制度上应倾注切实可行的法律人文性。在一定的条件和法律环境下,适宜的冲突法或者直接调整方法运用于该领域,是保障人的自由权、契约身份权,维护依法设立的民事关系的稳定性,内外有别地对待与处理涉外民事身份关系的需要。     

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。