激光喇曼光谱在物证分析中的应用

在侦察工作中,要想及时地揭露犯罪和有效地证实犯罪,就必须准确地鉴别微量物证。激光喇曼技术是研究分子结构的重要手段之一,在分析和鉴定微量的纤维、橡胶、塑料、涂料、爆炸物、油墨和墨水等物证时,有很大的优越性。     

Withdrawal of Parental Responsibility: Lost Authority and a Lost Opportunity

This comment examines Re D (Withdrawal of Parental Responsibility), the first reported Court of Appeal decision on withdrawal of parental responsibility pursuant to section 4(2A) of the Children Act 1989. It demonstrates that the Court overlooked earlier Court of Appeal authority, resulting in tension in the Court's guidance. The comment criticises the Court of Appeal's characterisation of parental responsibility as entirely child‐centred and its uncritical acceptance that the child's welfare is the paramount consideration in applications for withdrawal of parental responsibility. It argues that such an approach may not adequately respect the parent's interests in retaining parental responsibility, especially in the context of an order which is more draconian in effect than a care order. The impact upon applications for removal of parental responsibility of the new presumption of parental involvement, which was implemented shortly after the decision in Re D, is also considered.     

Examination of the Sequence between Laser Printing and Rollerball Pen Writing Without an Intersecting Stroke

Examining the sequences of printing and writing is a significant method of determining the authenticity and validity of documents. Forensic document examiners have extensively studied crossing lines, which has produced useful information. However, the sequence for laser printing and rollerball pen writing without crossing strokes has not been studied. To solve this problem, volunteers were invited to write characters on A4 paper with different rollerball pens using two sequences. Four laser printers applied print to these sheets, and the materials were examined using an Optem A-Zoom2 video tomography microscope. Consequently, distinguishing features were noted between the materials produced in both sequences. These features might provide a scientific basis for accurately determining the sequence between laser printing and rollerball pen writing in the absence of intersecting strokes.     

拐卖妇女儿童罪的几个问题

拐卖妇女、儿童罪是一种严重的危害社会的犯罪,其保护客体是被拐取人的人身自由和本来的生活场所的安全。构成本罪,被害妇女的同意可以阻却违法,但儿童的同意则不能阻却违法。构成本罪也不要求有场所的转移。本罪是典型的目的犯,构成犯罪既遂时,并不要求实现特定目的。本罪是继续犯,在犯罪行为的继续中,有成立共犯的余地。从犯罪本质上讲,绑架罪、拐骗儿童罪与本罪的罪质都是一样的,三者构成了对人身自由和本来的生活场所安全法益的完整的保护体系。     

BURDEN OF PROOF BEGONE

This article examines the tendency of emergency child removal decisions—by social workers, police officers, and judges—to become self-reinforcing and self-perpetuating in subsequent child protective proceedings. This snowball effect, as one court has referred to it, is widely acknowledged by lawyers who practice in juvenile court, yet is largely unknown beyond those circles. The article explores the causes and consequnces of this phenomenon in the age of the 1997 federal Adoption and Safe Families Act (ASFA), which converts every day that a child spends in foster care into one more tick of the clock in a countdown toward termination of parental rights. The article provides some background on the law and practice of emergency child removal in the United States today, analyzes the factors that make initial removals outcome determinative in many child protection cases, considers the implications of this phenomenon in light of ASFA, and identifies possible solutions.     

常用彩色激光打印机打印文件暗记特征的初步研究

目的收集当前我国常用不同品牌和型号的彩色激光打印机打印样本,研究打印文件上暗记特征的提取分析及其变化规律,探讨彩色激光打印文件暗记特征在鉴定实践中的应用及其在打印文件防伪措施中的价值。方法使用显微镜、文检仪及有关图像处理技术分别检验了彩色激光打印机的打印文件样本。结果彩色激光打印机打印文件上会出现暗记特征,且不同品牌的暗记特征出现规律、形态特征和点阵特征不同。结论暗记特征可作为初步鉴别彩色激光打印机品牌型号及打印时间的依据,具有防伪价值,但其在鉴定实践中还存在一定的局限性,有待进一步研究。     

Visualisation by confocal microscopy of traces on bullets and cartridge cases

The capabilities of confocal scanning laser microscopy for the visualisation of marks on bullets and cartridge cases were investigated. Confocal microscopy provides solutions to important limitations of conventional comparison microscopy with grazing light incidence, as generally used for the examination of these marks. It is expected that confocal microscopy, thanks to its broad applicability within the field of firearms investigation and its capability of non-destructively gathering quantitative three-dimensional information, will lead to a more complete and objective forensic examination of bullets and cartridge cases.     

对《内罗毕国际船舶残骸清除公约》的再思考

2007年国际海事组织审议并通过了《内罗毕国际残骸清除公约》,此后国内大多数专家、学者主要围绕其提出的强制保险及直接诉讼制度开展深入研究,而对其他建设性内容却探讨甚少。公约其他内容,如扩大残骸范围、明确定位标记费用的承担者、采用即时强制制度等,对建立国内船舶残骸清除制度也具有较强的借鉴意义。通过对公约相关制度进行利弊分析,进而提出可供国内立法参考的有益建议。     

The utility of polyester and cotton as swabbing substrates for the removal of cellular material from surfaces

Various types of cotton and polyester fabrics were tested to ascertain the optimal physical and chemical characteristics of fabrics needed for the removal of cellular material from surfaces. DNA quantitation values obtained on dried saliva stains showed no difference between cotton and polyester across all constructions and solvent conditions. Fabrics used dry and with water yielded higher quantitation values than those used with isopropanol. Quantitation values were also higher for wovens and nonwovens than knits across all solvent conditions. Low thread count fabrics used with water yielded higher quantitation values, but no correlation between thread count and quantitation values was observed with dry fabrics. A low thread count woven fabric, however, outperformed other tested fabrics when swabbing object surfaces in a highly used room. Full DNA profiles from fingerprints on glass surfaces were obtained with low thread count woven and nonwoven fabrics but not with the knit fabric tested.