Illegal Route Estimation of the Seized Illicit Drug, Methamphetamine, by the Comparison of Striation Marks on Plastic Packaging Films

Abstract:  In Japan, the most common illicit drug is methamphetamine. It is possible to trace the origin of this drug by analyzing its organic and inorganic impurities and/or byproducts using several methods, such as GC, GC/MS, and inductively coupled plasma-mass spectrometry (ICP-MS). As reported here, one other method includes comparison of the striation lines of polymer sheet layers from packaging using a polarized light method. Other alternative methods include analyzing the heat sealer pattern, layer thickness surface characteristics, and/or components of polymer sheet layers using infrared spectroscopy. Several of these alternative methods were used to analyze the origins of 29 packages confiscated from three regions over a 1000 km distance in Japan. Results indicated that packages seized from different regions had some polymer sheet layers which contained striation lines and heat sealer patterns that were similar.     

The Juvenile Justice Reform Act of 2018: Updating the Federal Approach to Youth Involved,and At‐Risk of Becoming Involved,in the Juvenile Justice System

On December 21, 2018, the Juvenile Justice Reform Act was signed into law, marking the first update in 16 years to the Juvenile Justice and Delinquency Prevention Act of 1974, as amended. The reforms reflect much of the knowledge that has been gained through research and science over the past decade and strengthen the Act’s core protections for youth in the juvenile justice system. The changes also expand the Office of Juvenile Justice and Delinquency Prevention’s role in research, and technical assistance, and provide for additional oversight for related programs.     

超高效液相色谱-MS/MS法测定血中11种苯丙胺类物质

目的应用超高效液相色谱-质谱法对全血中11种苯丙胺类毒品进行定量测定。方法全血样品经1%(v/v)甲酸-乙腈提取,采用Ostra磷脂过滤板净化处理,使用ACQUITY UPLC BEH Phenyl(100mm×2.1mm,1.7μm)色谱柱,以0.3%(v/v)甲酸溶液-乙腈为流动相进行梯度洗脱。在多反应监测模式下测定全血样本中苯丙胺、甲基苯丙胺、二亚甲基双氧苯丙胺、替苯丙胺、3,4-亚甲基二氧基乙基苯丙胺、N-甲基-1-(3,4-亚甲二氧基苯基)-2-丁胺、副甲氧基甲基苯丙胺、麻黄碱、甲基麻黄碱、卡西酮、甲卡西酮,并进行方法学考察。结果 11种苯丙胺类物质的检出限(S/N≥3)为0.01~0.4ng/m L,在0.5~50μg/L范围内线性关系良好(r0.999);回收率在75.8%~103.4%之间,相对标准偏差在1.6%~13.0%之间。结论本文建立的超高效液相色谱-质谱法快速、简便、灵敏,适用于中毒案件检验及吸毒人员排查。     

5例内固定取出术后再骨折的因果关系鉴定

目的 分析骨折内固定取出术后再发骨折的原因,探讨再骨折因果关系评定的原则.方法 回顾分析5例骨折内固定取出术后再发骨折的原因及其与原发损伤的因果关系.结果 5例发生再骨折者多为中青年,无过早取内固定的情形,无明显外伤史(1例有轻微外伤).结论 内固定本身的因素导致骨折处的骨量下降、不恰当的内固定取出时机、不适当的功能锻炼及外伤都是再骨折的可能原因,在因果关系分析时需注意界定一因还是多因形式,并注意区别多因比例.     

Predicting public support for the use of license plate recognition technology by police

The use of license plate recognition technology (LPR) by police is becoming increasingly common. LPR may be used for many purposes, ranging from stolen vehicle enforcement to more complex surveillance and predictive functions. Existing research does not examine community support for this technology, despite its potential to impact police legitimacy. Results from the first community LPR survey are presented and multinomial logistic regression models of citizen support for the technology are developed. Regression results suggest that a number of factors significantly predict citizen support for LPR use, including increased trust in police and the belief that LPR information is public information.     

未成年人犯罪刑事立法完善之研究

顺应我国构建和谐社会的要求,针对司法实践中对未成年人适用刑罚社会效果不尽理想的现实,有必要对现行刑法及其他相关规范性文件中关于未成年人犯罪的刑事立法进行完善.具体而言:应当明确禁止对未成年犯罪人适用无期徒刑与罚金刑;严格限制未成年人的累犯构成条件;对未成年人建立"前科消灭制度";完善未成年人犯罪的非刑罚处置措施结构.