Observer determination of the make,model, and year of questioned vehicles

Often, criminal acts involving a vehicle are caught on digital video surveillance systems. While potentially useful for an investigation, the recording conditions are typically less than optimal for the extraction of key information for the identification of the perpetrator, such as a license plate. Providing the make, model and year of a questioned vehicle is a common request for examiners, to narrow the field of potential suspect vehicles. This study seeks to compare the performance of a nonpeer-reviewed make, model, and year determination between two separate groups, specifically, trained forensic image examiners and nontrained individuals. Results show that even with varied image capture conditions and quality, the trained forensic image examiners more correctly and completely identified the test group of questioned vehicles make, model, and year.     

Forensic Application of Analytical Mechanics in Fatal Fall From a Height

Fatal fall from a height initiated with a swinging motion on the sagittal plane of the victim's body is examined. Method of analytical mechanics is adopted to establish the functional relations between the swinging angle of the body and the force needed to sustain the body until release, and the amount of the horizontal displacement that would occur after release. The analysis is applied to support an expert opinion presented in a criminal court in which two accused were convicted of murder for dropping a female victim from a bridge. The results indicate that it is unlikely for the body to locate as recorded by the police investigation report in the case. This study demonstrates that a straightforward mechanical analysis can be utilized to examine uncommon falling scenarios.     

Effect of Wind on Horizontal Displacement of Fatal Fall from a Height

The horizontal displacement of the human body resulting from fatal fall from a height is an important variable commonly used to inversely determine the cause or identify other forensic aspects of the fall. When examining the horizontal displacement, the wind effect is generally ignored. This technical note reports analytical modeling of the falling process, utilizing previous measurements of wind force acting on the human body, for determining the functional relationship between the wind speed and the horizontal displacement in the falling process. The result reveals that it does not take extremely rare wind conditions to cause a considerable shift of the human body, highlighting the importance to consider wind as a factor in investigations of fatal falls.     

"堰塞湖"型社区治安管理模式探析 ——以北京市崔各庄东辛店村为例

基层治,则天下安。在新型城镇化纵深推进大背景下,对流动人口住处的疏解整治成为解决"大城市病"的必要手段,但实践中拆迁整治引发了"堰塞湖效应","堰塞湖效应"使得流动人口流入地社区演变成"堰塞湖"型社区。对此类社区的治安管理应革新以往防范式治安管理模式,有针对性地构建社区治安问题"审视→分析→反应→评估"的治安管理模式,根据"堰塞湖"型社区治安问题产生的原因及管理困境,形成一套从宏观到微观的逻辑严谨、运行有序的治安管理体系。具体可从树立"善治"和"共治"治安管理理念、促进流动人口社区融合和社区治安资源整合等方面入手解决"堰塞湖"型社区治安问题,以维护社区安全稳定。     

劳模精神、劳动精神和工匠精神探析

党的十八大以来，在习近平总书记关于工人阶级和工会工作的系列重要讲话中，多次强调要坚 持弘扬劳模精神、劳动精神、工匠精神。认真领会劳模精神、劳动精神、工匠精神的科学内涵以及它们之间的 逻辑关系，对于实现中华民族伟大复兴的中国梦、增强文化自信和全面提升我国产业工人队伍整体素质有着重 大的理论价值和现实意义。劳模精神和劳动精神是整体和部分的关系，劳模精神和工匠精神是外力和内力的关系， 劳动精神和工匠精神是共性和个性的关系。总之，劳动精神，工匠精神，劳模精神存在逐步递进的逻辑。劳动 精神是成为人的精神，工匠精神是成为更加优秀的人的精神，劳模精神则是成为影响别人的人的精神。     

大连地区汉族人群4个STR基因座的多态性

采用 310型DNA全自动测序仪 ,选用商品化试剂盒AmpFeSTRTM Confiler (PE公司 ) ,复合扩增D16S5 39、CSF1PO、TPOX和TH0 14个STR基因座 ,对大连地区汉族人群进行了基因频率调查 ,现将调查结果报道如下。1　材料和方法6 10份血液来源于大连市中心血站无关个体 ,采用chelex 10 0法[1] [2 ] 提取DNA后采用 310型DNA全自动测序仪 ,按AmpFeSTRTM Confiler试剂盒说明书进行扩增和检测。用GenescanTM 分析软件分析结果并自动比对。2　结果与讨论4个STR基因座的等位基因在大连地区汉族人群中的分布频率见表 1;杂合度 (H)、H期标…     

相对集中行政处罚权：立法模式与制度创新

相对集中行政处罚权实践是我国行政管理体制的创新举措,已经取得了较明显的效果。但目前囿于立法层次较低,且各地规范不一,极大地阻碍了这一新生事物的进一步成长。因此我们应在统一立法和系统全面立法的基础上,尽快制定一部法律或行政法规系统规范该制度。同时加强诸如表明身份制度、说明理由制度、阅卷制度、时效制度、格式化制度、职能分离制度、案卷排他性制度等研究,以丰富和完善该处罚权的实践。     

汉族人群五个STR基因座的多态性调查

应用PCR及PAG电泳技术研究了PLA2A、vWA、CYP19、TH和LPL五个基因座的多态性，调查武汉地区汉族无关个体，获得汉族人群的频率分布。五个基因座基因型频率分布与Hardy-Weinberg平衡吻合良好、分别计算基因座的杂合度（H）、个人识别能力（Dp）、非父排除率（PE）和多态性信息总量（PIC）。为法医学应用提供了基础数据。     

论新时期公安院校形象设计

公安院校形象设计是公安院校寻求广泛社会支持、提高综合竞争力、满足不同社会群体心理诉求的总体规划。设计良好、有特色的高校形象,要在确立办学理念的前提下,通过行为识别系统规范学校运行,通过视觉识别系统提升学校形象,并根据情况分别采用以传播媒介为主、以交际为主、以服务为主、以自我完善为主等不同的模式。     

山东地区人群9个STR基因座遗传多态性及频率调查

应用AmpFISTRProfilerPlus试剂盒及377型测序仪对山东地区200例无关个体血样进行了9个STR基因座多态性及频率调查,经X2检验,9个基因座基因频率均符合Hardg-Weinberg平衡定律,家系分析均符合孟德尔遗传规律,并应用于案件检验取得良好效果。