Medical examiner response to the drug overdose epidemic in King County Washington: “Real-time” surveillance,data science,and applied forensic epidemiology

As the overdose epidemic overwhelmed medicolegal death investigation offices and toxicology laboratories, the King County Medical Examiner's Office responded with “real-time” fatal overdose surveillance to expedite death certification and information dissemination through assembling a team including a dedicated medicolegal death investigator, an information coordinator, and student interns. In-house testing of blood, urine, and drug evidence from scenes was performed using equipment and supplies purchased for surveillance. Collaboration with state laboratories allowed validation. Applied forensic epidemiology accelerated data dissemination. From 2010 to 2022, the epidemic claimed 5815 lives in King County; the last 4 years accounted for 47% of those deaths. After initiating the surveillance project, in-house testing was performed on blood from 2836 decedents, urine from 2807, and 4238 drug evidence items from 1775 death scenes. Time to complete death certificates decreased from weeks to months to hours to days. Overdose-specific information was distributed weekly to a network of law enforcement and public health agencies. As the surveillance project tracked the epidemic, fentanyl and methamphetamine became dominant and were associated with other indicators of social deterioration. In 2022, fentanyl was involved in 68% of 1021 overdose deaths. Homeless deaths increased sixfold; in 2022, 67% of 311 homeless deaths were due to overdose; fentanyl was involved in 49% and methamphetamine in 44%. Homicides increased 250%; in 2021, methamphetamine was positive in 35% of 149 homicides. The results are relevant to the value of rapid surveillance, its impact on standard operations, selection of cases requiring autopsy, and collaboration with other agencies in overdose prevention.     

Forensic integrity verification of video recordings based on MTS files

Digital video is used in criminal trials as evidence with legal responsibility because video content vividly depicts events occurring at a crime scene. However, using sophisticated video editing software, assailants can easily manipulate visible clues for their own benefit. Therefore, the integrity of digital video files acquired or submitted as evidence must be ensured. Forensic analysis of digital video is key to ensuring the integrity of links with individual cameras. In this study, we analyzed whether it is possible to ensure the integrity of MTS video files. Herein, we propose a method to verify the integrity of MTS files encoded by advanced video coding high definition (AVCHD), which is frequently used for video recording. To verify MTS file integrity, we propose five features. Codec information, picture timing, and camera manufacture/model are modified AVI and MP4-like format video verification features. Group of pictures and Universally Unique Identifier patterns were specifically developed for MTS streams. We analyzed the features of 44 standard files recorded using all recording options of seven cameras. We checked whether integrity can be validated on unmanipulated videos recorded in various environments. In addition, we considered whether manipulated MTS files edited in video editing software could be validated. Experimental results show that all unmanipulated and manipulated MTS files with known recording devices were discriminated only when all five features were checked. These results show that the proposed method verifies the integrity of MTS files, strengthening the validity of MTS file-based evidence in trials.     

论虚拟侦查

虚拟侦查是与实体侦查相对而言的.它是指通过对数据信号的收集、分析和利用,获取侦查线索和犯罪证据,揭露和证实犯罪的活动.在实体侦查面临严峻的时代挑战的形势下,虚拟侦查的开展是必要的,同时也是可行的.虚拟侦查具有现实合法性.从国内外虚拟侦查的实践状况和发展趋势看,虚拟侦查活动在侦查实践中的运用空前活跃,效果良好,前景广阔.     

‘Wayward Girls and Wicked Women’: Two Centuries of ‘Semi-Penal’ Control

This paper explores the way in which unruly or `deviant' women have historically been subjected to various strategies and mechanisms of control, designed to regulate and reform them back to the acceptable and appropriate standards of femininity from which they were perceived to have strayed. In particular the way in which `semi-penal' institutions were utilised for this purpose is examined. It is argued that `semi-penal' institutions such as refuges, reformatories and homes, occupied a unique position within the social control continuum, somewhere between the formal regulation of the prison and the informal control of the domestic or communal sphere. What made them particularly unique was the way in which they managed to combine both formal and informal methods of control in order to produce feminising regimes, aimed at reforming recalcitrant women into respectable, gendered subjects. In addition, these institutions had the effect of `widening the net' of control for women, establishing an all-encompassing system of surveillance which was at once punitive and reformative. To facilitate this analysis, five groups of women have been identified; prostitutes, criminals, the `wayward', inebriates and the `feeble-minded'. The specific methods utilised to control and reform each of these groups will be discussed along with the themes of continuity which serve to synthesize the history of the treatment of such women. This revised version was published online in August 2006 with corrections to the Cover Date.     

令人不适的法医影像对司法心证的影响探微

司法人员在审查案卷时,可能由于一些令人不适的法医影像而影响其客观、公正地履行职责。在现实中法医影像制作的不规范状况扩大了这种负面影响。而对这种负面影响的制约有赖于相应法律规范和证据规则的制定、制作人观念和态度的转变、制作方式的规范,以及司法人员相应素质的提高。     

短视频作品的著作权保护

短视频行业的快速发展必然带来短视频作品著作权保护的问题。就防止短视频作品著作权侵权而言,从普通用户到短视频平台等网络服务提供者,其所负担的义务内容和程度从根本上来说与其他类型的网络作品的相关内容区别不大,不同之处在于这种新形式的消费潮流尚缺乏专门用来应对的相关法律和措施,因此探讨短视频作品的著作权侵权及其保护,为各方主体提供注意义务参考和针对短视频作品著作权保护提出建议,对保障文化产业的发展意义重大。     

Identification of Mobile Phone and Analysis of Original Version of Videos through a Delay Time Analysis of Sound Signals from Mobile Phone Videos

This study designs a method of identifying the camera model used to take videos that are distributed through mobile phones and determines the original version of the mobile phone video for use as legal evidence. For this analysis, an experiment was conducted to find the unique characteristics of each mobile phone. The videos recorded by mobile phones were analyzed to establish the delay time of sound signals, and the differences between the delay times of sound signals for different mobile phones were traced by classifying their characteristics. Furthermore, the sound input signals for mobile phone videos used as legal evidence were analyzed to ascertain whether they have the unique characteristics of the original version. The objective of this study was to find a method for validating the use of mobile phone videos as legal evidence using mobile phones through differences in the delay times of sound input signals.     

Surveillance of environmental movements in Canada: critical infrastructure protection and the petro-security apparatus

A convergence of post-9/11 security governance practices and a dependence on extractive economies has resulted in changes to the way Canadian policing agencies classify environmental movements. We detail how the category of ‘critical infrastructure protection’ (CIP) now enables surveillance of environmentalists under the banner of national security. We examine the growth of CIP as a security category, its changing character from the Cold War to the present, and the role of threat entrepreneurs. We demonstrate that CIP networks have institutionalized collaborations between national security agencies and energy corporations, creating a petro-security apparatus that aims to suppress dissent. We conclude with reflections on what surveillance regimes driven by the petro-security apparatus mean for debates about national security and social movements.