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.     

A glance at digital forensic academic research demographics

Whilst the field of digital forensics is now well established, its research community can be considered relatively emerging in comparison to the associated areas of traditional forensic and computer sciences. As a result, this comment article takes a quick look at the demographics of digital forensics research over the last 20 years, with metadata from 6589 articles being extracted and analysed from Scopus in order to provide a brief insight into this field’s research activity.     

比色法测定人参中人参总皂苷的含量

目的：建立人参中人参总皂苷的含量测定方法。方法：采用比色法测定。结果：比色法测定的线性范围为15．0～75．0μg，相关系数γ=0．9997；平均回收率为100．61％，RSD为1．51％(n=6)。结论：本法简便、准确、灵敏度高、重复性好，可用于人参药材及含人参制剂的含量测定。     

实战综合演练在警察查缉战术教学中的运用

实战综合演练是增强警察查缉战术教学效果、提高教学质量的行之有效的教学手段和方法。在警察查缉战术教学中运用实战综合演练教学法,应当遵循“练为战”、循序渐进、精讲多练、启发诱导、民主教学等教学原则,教学内容包括技术演练、战术演练、技战术合成综合演练等方面,在教学实施时应重点抓住教学准备、教学内容剖析、教学过程设计、教学组织等主要环节     

益智仁中总黄酮含量测定

目的：考察不同产地益智仁中总黄酮的含量,为益智仁的质量标准研究提供依据.方法：用AlCl3-NaNO2-NaOH显色,利用紫外分光光度法测定益智仁中总黄酮的含量,检测波长为510 nm.结果：在19.2～38.4 μg/ml范围内,吸收度与浓度呈良好的线性关系,回归方程：A=0.015 1c＋0.038 1,r=0.999 8;回收率为100.44%,RSD=0.51%.结论：该方法可靠、结果稳定、重现性好,可作为益智仁中总黄酮的含量测定方法.     

试析数字图像处理在刑侦技术工作中的应用

数字图像处理在刑侦技术工作中的应用是刑事技术领域的一场革命,将计算机数字图像处理技术融入传统的刑侦技术工作中是必然的趋势,它将为现代刑侦工作带来新的发展机遇。文章就数字图像处理技术的概念、主要研究内容、在刑侦技术工作中的优越性及具体应用等作了较为详细的介绍     

Not So Scary: Using and Defusing Content Warnings in the Classroom

Content warnings — notices to students that class material may evoke their past traumas — have become entangled in (over)heated debates about the role of free speech on campus. Critics denounce content warnings as silencing tools intended to promote censorship, preclude discussion of difficult topics or punish professors who hold unpopular views. Supporters too often conflate content warnings with broader demands for classroom “safe space” that fail to recognize the distinct features of posttraumatic stress as a form of mental illness. In this article, I reconceptualize content warnings as a way to facilitate access to course material for students with posttraumatic stress disorder (PTSD). I then offer a set of concrete strategies for employing content warnings in political science courses. These strategies aim not only to support students struggling with trauma but also to de-escalate the controversy around content warnings by emphasizing how such warnings work to encourage engagement, access, and discussion.     

Digital forensics as a service: Game on

The big data era has a high impact on forensic data analysis. Work is done in speeding up the processing of large amounts of data and enriching this processing with new techniques. Doing forensics calls for specific design considerations, since the processed data is incredibly sensitive. In this paper we explore the impact of forensic drivers and major design principles like security, privacy and transparency on the design and implementation of a centralized digital forensics service.     

Does online voting change the outcome? Evidence from a multi-mode public policy referendum

Do online and offline voters differ in terms of policy preferences? The growth of Internet voting in recent years has opened up new channels of participation. Whether or not political outcomes change as a consequence of new modes of voting is an open question. Here we analyze all the votes cast both offline (n = 5.7 million) and online (n = 1.3 million) and compare the actual vote choices in a public policy referendum, the world's largest participatory budgeting process, in Rio Grande do Sul in June 2014. In addition to examining aggregate outcomes, we also conducted two surveys to better understand the demographic profiles of who chooses to vote online and offline. We find that policy preferences of online and offline voters are no different, even though our data suggest important demographic differences between offline and online voters.     

Digital citizenship and neoliberalization: governing digital citizens in Denmark

Digital citizenship is becoming increasingly normalized within advanced democratic states. As society and governmental institutions become reliant on digital technologies, citizens are expected to be and act digitally. This article examines the governance of digital citizens through a case study of digitalization efforts in Denmark. Drawing on multiple forms of data, the article showcases how digital citizens are governed through a combination of discursive, legal and institutional means. The article highlights the political, but also institutional work that goes into making citizens digital. Providing this case study, the article contributes to current critical perspectives on the digital citizen as a new political figure. It adds new insights into digital citizenship by connecting this figure to wider processes of neoliberalization and state restructuring, pushing for a more pronounced focus on governmental practices.