治安软法的实践效应及完善

治安软法是指原则上没有法律约束力,但有实际效力的警察规范性文件。公安机关适用的软法包括解释性、指令性、宣言性等文件,其根本目的是为了解决安全事件治理中的疑难。治安软法具有积极性和消极性两重实践效应,积极性效应在于,软法进一步完善公安法制,缓解硬法带来的刚性冲突;消极性效应在于,软法引起基层派出所守法的不确定性,甚至是执法的随意性。有效解决的方法是承认治安软法的实际效力,同时对治安软法制定的程序、警察执法权力的规范、责任的认定以及执法的监督等做出详尽规定,才能使治安软法扬长避短地发挥其维护公民安全、公共安全的功能。     

Digital Stratigraphy: Contextual Analysis of File System Traces in Forensic Science

This work introduces novel methods for conducting forensic analysis of file allocation traces, collectively called digital stratigraphy. These in‐depth forensic analysis methods can provide insight into the origin, composition, distribution, and time frame of strata within storage media. Using case examples and empirical studies, this paper illuminates the successes, challenges, and limitations of digital stratigraphy. This study also shows how understanding file allocation methods can provide insight into concealment activities and how real‐world computer usage can complicate digital stratigraphy. Furthermore, this work explains how forensic analysts have misinterpreted traces of normal file system behavior as indications of concealment activities. This work raises awareness of the value of taking the overall context into account when analyzing file system traces. This work calls for further research in this area and for forensic tools to provide necessary information for such contextual analysis, such as highlighting mass deletion, mass copying, and potential backdating.     

‘Demonstrative Evidence’: A Genealogy of the Racial Iconography of Forensic Art and Illustration

This essay stages a critique of the unacknowledged racialising visual regimes that inform forensic pathologys typical body charts. In order to disclose these unacknowledged regimes, I stage a genealogy of the racialising iconography that continues to shape forensic pathologys visual texts. In drawing attention to the racialising visual conventions that constitute the contemporary production of caucacentric forensic body charts, I attempt to disrupt the scientifico-objective status of these visual artefacts in order to underscore their ideological effects. By focusing on the ontological/epistemological split between the corporeality of native informants and white knowledge workers, I underscore the white medico-legal professions historical transmuting of other bodies into objects of knowledge. I conclude by outlining the discursive effects of presenting forensic pathologys caucacentric body charts as demonstrative evidence within the court of law.This is an extended version of an essay first presented at the Association for the Study of Law, Culture, and the Humanities Conference, Cardozo Law School, New York University, New York, USA, March 2003. My thanks to Peter Goodrich and Penelope Pether for their generous enthusiasm and support.     

复合扩增STR位点片段长度多态性的研究

本文介绍了以三个短串联重复序列（STR）位点为基础的复合扩增进行个体识别的技术。其特点是在同一扩增体系内对彼此独立的三个STR位点，即HUMTH01[AATG]nHUMFABP[AAT]nHUMARA[AGC]n进行复会扩增，扩增产物用聚丙烯酰胺凝胶电泳分离。经研究发现这三个STR位点具有高度多态性，扩增产物分子量在190～310bP之间，各位点等位基因数分别为6、9、16个，杂合度78．2％、85，0％、89．0％，个体识别率0．918、0．960、0．905，其累积的个体识别率达0．9997，高于pMCT118等位点，且扩增时间短，操作简便，为法医物证检验提供了一种高效的个体识别手段。     

Testing Anatomical Methods for Stature Estimation on Individuals from the W. M. Bass Donated Skeletal Collection

Abstract:  This study compared eight versions of the anatomical method for stature estimation on a white male sample ( n  = 34) from the W. M. Bass Donated Skeletal Collection. The aim was to evaluate errors in the estimates and to discuss how useful the methods are in forensic context. The average error estimating living stature was less than 1 cm for six of the methods. The correlations between the estimates were high ( r  = 0.982–0.999). In practice, differences between the versions as well as those between long bone-based equations and anatomical methods were small. Anatomical method is nevertheless more accurate than long bone regressions when individuals with atypical body proportions are examined.     

Recovery and STR amplification of DNA from RFLP membranes

Restriction fragment length polymorphism (RFLP) techniques were utilized in the forensic DNA community until the mid 1990s when less labor-intensive polymerase chain reaction short tandem repeat (PCR STR) techniques became available. During the transition from RFLP technology to PCR-based STR platforms, a method for comparing RFLP profiles to STR profiles was not developed. While the preferred approach for applying new technology to old cases would be to analyze the original biological stain, this is not always possible. For unsolved cases that previously underwent RFLP analysis, the only DNA remaining may be restriction cut and bound to nylon membranes. These studies investigate several methods for obtaining STR profiles from membrane bound DNA, including removal of bound DNA with bases, acids, detergents, various chemicals, and conventional cell extraction solutions. Direct multiplex STR amplification of template in the membrane-bound state was also explored. A partial STR profile was obtained from DNA that was recovered from an archived membrane using conventional extraction buffer components, indicating promise for recovering useful STR information from RFLP membranes that have been maintained in long-term frozen storage.     

Spatial and temporal influences on bacterial profiling of forensic soil samples

Bacterial content may be helpful in differentiating forensic soil samples; however, the effectiveness of bacterial profiling depends on several factors, including uniqueness among different habitat types, the level of heterogeneity within a habitat, and changes in bacterial communities over time. To examine these, soils from five diverse habitats were tested over a 1 year period using terminal restriction fragment length polymorphism (TRFLP) analysis. Soil samples were collected at central locations monthly, and 10 feet in cardinal directions quarterly. Similarity indices were found to be least related among habitats, while the greatest bacterial similarities existed among collection locations within a habitat. Temporally, however, bacterial content varied considerably, and there was substantial overlap in similarity indices among habitats during different parts of the year. Taken together, the results indicate that while bacterial DNA profiling may be useful for forensic soil analysis, certain variables, particularly time, must be considered.     

“落后妇女”——农业合作化叙事中的“症候”

在20世纪50-70年代农业合作化题材的文学作品中,出现了一个人数众多的"落后妇女"群体,她们思想品德不佳,好吃懒做,出身不好,同时还伴有身体的病痛。狂热的农业合作化和人民公社运动在当时造成的劳动力的巨大缺口,是这类人物大量出现的时代原因和逻辑起点。她们的大量出现及其躯体的反应是女性婚姻、女性生育、女性健康、女性身份与激进运动紧张关系的表征,同时也成为农业合作化叙事无法消弭的"症候"。     

The challenge of public law law reform: reflections on a failed Law Commission project

This article reviews the history of the Law Commission project on administrative law and the citizen from 2003, a project which the Law Commission essentially substantively ended in 2010. The project provides lessons both about the initiation and design of law reform projects and on the prospect of law reform being institutionally capable of contributing to the development of core areas of public law.     

单芯电缆线断头痕迹实物提取方法

目的研究单芯电缆线这种离散型客体的实物提取方式、涉及的提取工具和最佳提取长度。方法采用模拟实验的方式,选用不同种类的单芯电缆线为客体,以电缆线断头痕迹不发生变化为基准,确定不同实物提取方式或不同种类工具提取单芯电缆线的最短长度。结果单芯电缆线实物提取可采取的方式主要有钳剪和割削两种,其中钳剪提取方式使用的工具为断线钳和线缆剪,割削提取方式使用的工具为钢锯和角磨机;针对直径小于16mm、非金属外护套及绝缘层的单芯电缆线,断线钳剪切提取最佳长度约为55cm,线缆剪剪切提取最佳长度约为70cm,钢锯锯割提取最佳长度约为5cm,角磨机切削提取最佳长度约为5cm。结论割削提取方法是提取电缆线断头的最佳方法;依据提取操作简便性及快捷性,角磨机(或充电式角磨机)为现场提取电缆线断头的最佳工具。