论全程录音录像制度的科学构建

全程录音录像制度对于规范执法行为,保障犯罪嫌疑人基本权利,促进司法公正具有重要意义。全程录音录像不是单纯意义上的技术性措施,其构建应当放在整个刑事诉讼架构中进行,辅以必要的配套措施,明确违反全程录音录像规定的制裁性后果,合力形成完整的制度体系。在当前的社会发展条件下,全程录音录像制度的构建尚难以“一步到位”,仍需循序渐进推行,并在主客观条件具备之时全面实施,切实发挥制度的应有功能。     

民事诉讼证据交换制度的立法探讨

证据交换的正当性虽然无可置疑,但其被规避适用却是实务中的普遍现象。设置证据交换制度有诉讼效率的考量,但其首要的价值目标却是公平和公正。审判效率得以提高的秘密不在于证据交换本身,而在于证据交换制度所依存的具有不可逆性的二元性诉讼结构。在制度层面上,司法解释与《民事诉讼法》的不兼容及司法解释技术自身的问题应当予以检讨。完整的具有实效性和可操作性的证据交换规则的确立包括两个大的方面：一是包含有实体性因素的证据交换规则;二是包含有程序性因素的证据交换规则。     

论加密技术对电子邮件证据力的影响

司法实践中电子邮件加密方法主要有对称密钥加密与非对称密钥加密两类,结合数字认证、数字签名等辅助加密技术,可以相应提高加密级别,增加电子邮件安全性。一般而言,加密电子邮件可靠性要高于非加密电子邮件,加密电子邮件证据能力受解密程序影响。电子邮件证据证明力受加密方法、行为人对电子邮件控制程度等因素影响。电子邮件证据证明力随加密级别的提高而提高。     

Watch for those fragments of evidence: the use of an automatic timepiece to help correlate a helicopter crash site from the Vietnam War

This case study illustrates the use of the date function on an automatic wristwatch to help identify a Vietnam War helicopter crash site. The location of a crash incident can sometimes be uncertain because of inadequate or inaccurate wartime records and the passage of time. Artifacts recovered from a prospective crash scene are regularly used to correlate the loss incident. In this case study, a recovered automatic watch displayed a date 2 days later than the reported loss incident. Although the date conflicts with the aircraft crash incident report, it is observed that a fully wound automatic watch continues to work for c. 2 days after movement of the watch ceases. Thus, the watch's date in fact correlates with the aircraft crash incident report. It is noted that automatic watches may also be used to date scenes of crime.     

Chelex法和两种磁珠法提取接触DNA效果的比较

目的比较Chelex法、DNA IQ磁珠法、EQ国产磁珠法对接触DNA的提取效果。方法将稀释为10ng、100ng的标准品DNA,分别采用Chelex法、DNA IQ磁珠法、EQ国产磁珠法处理;对30例烟蒂和30例牙刷分别采用Chelex法、DNA IQ磁珠法和EQ国产磁珠法提取DNA,然后进行PCR定量和STR检测。结果Chelex法对DNA的提取无损失,DNA IQ磁珠法、EQ国产磁珠法对DNA的提取均有不同程度的损失;烟蒂、牙刷等检材采用Chelex法提取的接触DNA量和IPC CT值显著高于IQ磁珠法、EQ国产磁珠法,但STR检验成功率却低于IQ磁珠法、EQ国产磁珠法。2种磁珠法提取的DNA量、IPC CT值和STR检验成功率无显著性差异。结论污染轻、杂质少的接触DNA检材,用Chelex法提取最为方便快捷;IQ磁珠法、EQ国产磁珠法更适合污染接触DNA检材的提取及自动化操作。     

以太网网络接口卡MAC永久地址与MAC当前地址的检验方法综述

本文综述了检验以太网网络接口卡MAC永久地址和MAC当前地址的方法,针对不同的检验客体提出了可行的检验方法。并提出了MAC在先检验的发展方向。     

刑事诉讼视野下的法医物证应用研究

法医物证在刑事诉讼中发挥着多种功能,但目前实践中对法医物证的有效发现、提取、保管、检验鉴定及应用的技术规范和证据规则尚不完善。本文从技术规范、诉讼程序以及证据应用的角度发掘法医物证应用的规律性内容,用以指导实践部门提高法医物证的发现、提取、检出的比率以及法医物证在刑事审判中的采用率及证明力,从而较好地解决定案证据的来源和案件事实的认定问题,并避免因法医物证错用而导致的错案。     

法证科学领域的决策

随着法证DNA证据以及它所适用的概率模型日益凸显,反映了传统法证科学的局限性,并使人们对法证科学领域的决策产生了越来越多的质疑,焦点集中在对结论的解读方式和实际运用。分析表明,科学证据的本质不是绝对性或确定性的,而是概率性的;同时,事实审判者需要基于这些概率性的证据对事实作出明确的决定。因此,对于法证科学领域的决策,应当是专家在一系列归纳得出的特定假设基础上,就研究结果的概率进行恰当的报告,由事实审判者承担对概率作出决断的任务。     

合同诈骗案件侦查的取证与讯问要略

合同诈骗犯罪危害严重,此类案件侦查一般分两个阶段：缉捕犯罪嫌疑人前,应注重对被害人、相关证人等全面调查取证;犯罪嫌疑人到案后,应及时进行讯问,做到合法、全面、细致地获取其口供.     

Collecting and Analyzing DNA Evidence from Fingernails: A Comparative Study,,

Forensic practitioners and crime laboratories regularly collect and analyze fingernail evidence; however, the best techniques for processing such evidence have not been established. In this study, numerous aspects of fingernail evidence processing—collection of exogenous cells, transportation, purification of DNA, and STR analysis—were analyzed using fingernails harboring applied blood or epithelial cells from scratchings. Autosomal STR mixtures resulted when fingernails were soaked or swabbed, while scrapings rarely generated mixtures but exhibited allelic dropout. Y‐STRs yielded single source profiles, with scrapings again showing dropout. A silica‐based kit extraction recovered significantly more exogenous DNA than did organic extraction, neither of which was affected by nail polish. Swabbing nails in succession resulted in some cross‐contamination from exogenous material, while transporting nails together did not, although there was loss of exogenous cells. Optimized nail processing produced complete Y‐STR profiles of male volunteers from female fingernails following scratchings.