The Examination of Commercial Printing Defects to Assess Common Origin,Batch Variation,and Error Rate*

Abstract: The examination of printing defects, or imperfections, found on printed or copied documents has been recognized as a generally accepted approach for linking questioned documents to a common source. This research paper will highlight the results from two mutually exclusive studies. The first involved the examination and characterization of printing defects found in a controlled production run of 500,000 envelopes bearing text and images. It was concluded that printing defects are random occurrences and that morphological differences can be used to identify variations within the same production batch. The second part incorporated a blind study to assess the error rate of associating randomly selected envelopes from different retail locations to a known source. The examination was based on the comparison of printing defects in the security patterns found in some envelopes. The results demonstrated that it is possible to associate envelopes to a common origin with a 0% error rate.     

Forensic Document Examiners’ Skill in Distinguishing Between Natural and Disguised Handwriting Behaviors

Abstract: Disguised handwriting is problematic for forensic document examiners (FDEs) and attracts higher misleading and inconclusive rates on authorship opinions than does genuine writing (Found B, Rogers D, International Graphonomics Society, 2005). There are currently no published empirical data on FDEs’ expertise in distinguishing between natural and disguised writing behavior. This paper reports on the skill of FDEs for determining the writing process of 140 pairs of natural and disguised writings and compares their results with those of a control group of laypeople. A significant difference was found between the examiner and lay group. FDEs’ expertise is characterized by their conservatism, where FDEs express a higher proportion of inconclusive opinions (23.1% for FDEs compared to 8.4% for the control group). This leads to the FDEs expressing a smaller percentage of misleading responses when calling writings as either naturally written or disguised (4.3% for FDEs compared with 12.2% for the control group).     

Forensic Discrimination of Dyed Hair Color: I. UV‐Visible Microspectrophotometry*†

Abstract: Current protocols for examining hair do not attempt to differentiate hair color using instrumental analysis. In this study, hair samples treated with 55 different red hair dyes were analyzed using UV‐visible microspectrophotometry between 200 and 700 nm. Using air as a background reference gave the best results, although mounting media such as glycerin could also be used. The contribution of the hair substrate is predominantly observed in the range of 300–400 nm while the dye peak is evident in the range of 425–550 nm. It was found that the presence of hair dye reduces the overall intrasample variability of the hair color. In addition, visual inspection and spectral interpretation showed that dyed hair exhibits distinct and discernable shades. The color of all samples was stable during storage and while all hair dyes fade with washing, significant fading of the color was only evident after daily washing for 3 weeks.     

论法学教育与司法考试的衔接——法律职业准入控制的一种视角

法学教育与司法考试的关系,是国家司法资格统一考试制度实施以来,为人们所关注和焦虑的一个重要课题。司法考试作为一种非常典型的法律职业准入控制措施,帮助我们营造了一个共同的语言、解释、价值、经历和身份的共同体,从而也决定性地正面促进了我国的法治建设。但是我们应该认识到司法考试不是万能的,它不能对法律从业者的法律素养作有效的考察和衡量,因此我们必须寻求有效的替代途径,而这正是法学教育,特别是法学院教育本身所具备的。美国法学院模式的成功对于我们构建法学院教育与司法考试的理想关系,提供了非常有意义的启发。     

显微红外光谱仪与显微拉曼光谱仪对纺用无色单根纤维的检测

目的研究常见纺用单根无色纤维的有效鉴别方法。方法使用显微红外光谱仪、显微激光拉曼光谱仪研究7大类纺用单根无色纤维的分子光谱。结果显微红外光谱仪、显微激光拉曼光谱仪能有效区分包括棉、粘胶、羊毛、丝、聚酰胺、聚丙烯腈和聚酯在内的7种纤维,是检测单根纤维的有效手段。785nm激发光源是显微激光拉曼光谱仪研究这7类纤维的最佳波长。但由于纺用纤维生产过程的标准化,仅依据红外或者拉曼的峰位置区分同种类、不同产地纤维的效果一般。结论显微红外光谱仪、显微激光拉曼光谱仪是鉴别常见纺用单根无色纤维的有效方法。     

显微红外光谱仪与显微拉曼光谱仪对纺用无色单根纤维的检测

目的研究常见纺用单根无色纤维的有效鉴别方法。方法使用显微红外光谱仪、显微激光拉曼光谱仪研究7大类纺用单根无色纤维的分子光谱。结果显微红外光谱仪、显微激光拉曼光谱仪能有效区分包括棉、粘胶、羊毛、丝、聚酰胺、聚丙烯腈和聚酯在内的7种纤维,是检测单根纤维的有效手段。785nm激发光源是显微激光拉曼光谱仪研究这7类纤维的最佳波长。但由于纺用纤维生产过程的标准化,仅依据红外或者拉曼的峰位置区分同种类、不同产地纤维的效果一般。结论显微红外光谱仪、显微激光拉曼光谱仪是鉴别常见纺用单根无色纤维的有效方法。     

对完善我国刑事人身检查制度的若干思考

刑事人身检查是一种重要的侦查取证手段,在实践中容易侵犯被检查人的身体权、隐私权等基本权利。刑事人身检查的法律属性应为强制措施。完善我国刑事人身检查制度应规定人身检查的原则、身体检查的种类和适用条件、赋予被检查人员应有的诉讼权利、建立对违法进行身体检查所取得证据的排除规则以及样本销毁制度。     

打破行政审批制度改革瓶颈思路探究

行政审批制度改革目前已处于瓶颈状态,表现出了一些失误和问题,影响了改革的继续深入。要打破行政审批制度改革瓶颈,其思路在于:将设定行政审批事项的"设计权、议事权"交由政府、社会和市场共同决定;改变公务员职业管理方式,试行政府雇员制;强化政府绩效管理。     

Selection of an adhesive tape suitable for forensic fiber sampling

Five commercial adhesive tapes were tested for fiber uptake and saturation, for recovery and for ease of analysis. On the basis of the results, a high tack adhesive tape has been selected to be used for forensic fiber sampling. This adhesive tape is used as sampling material in two different micro trace kits. The first tape lifting kit is used mainly for the sampling of cars and the second is a 1:1 tape lifting kit for the collection of fibers on a corpse.     

论医师资格考试制度发展趋势对医学教育的导向作用

介绍世界主要3种类型国家的医师资格考试和与之相适应的医学教育,探讨医师资格考试发展趋势对医学教育的导向作用。