Detection and confirmation of fentanyls in high clay-content soil by electron ionization gas chromatography-mass spectrometry

Detection of illicit drugs in the environment, particularly in soils, often suggests the present or past location of a clandestine production center for these substances. Thus, development of efficient methods for the analysis and detection of these chemicals is of paramount importance in the field of chemical forensics. In this work, a method involving the extraction and retrospective confirmation of fentanyl, acetylfentanyl, thiofentanyl, and acetylthiofentanyl using trichloroethoxycarbonylation chemistry in a high clay-content soil is presented. The soil was spiked separately with each fentanyl at two concentrations (1 and 10 μg/g) and their extraction accomplished using ethyl acetate and aqueous NH₄OH (pH ~ 11.4) with extraction recoveries ranging from ~56% to 82% for the high-concentration (10 μg/g) samples while ranging from ~68% to 83% for the low-concentration (1 μg/g) samples. After their extraction, residues containing each fentanyl were reacted with 2,2,2-trichloroethoxycarbonyl chloride (Troc-Cl) to generate two unique and predictable products from each opioid that can be used to retrospectively confirm their presence and identity using EI-GC-MS. The method's limit of detection (MDL/LOD) for Troc-norfentanyl and Troc-noracetylfentanyl were estimated to be 29.4 and 31.8 ng/mL in the organic extracts. In addition, the method's limit of quantitation for Troc-norfentanyl and Troc-noracetylfentanyl were determined to be 88.2 and 95.5 ng/mL, respectively. Collectively, the results presented herein strengthen the use of chloroformate chemistry as an additional chemical tool to confirm the presence of these highly toxic and lethal substances in the environment.     

论侦查信息媒介

从认识论的角度而言,侦查即是一个认识的过程,是一个对案件逐步深入认识的过程。从同一认定视角入手,则侦查即是一个广义的同一认定的过程。侦查主体的未知性和侦查信息的可知性使得侦查信息媒介的存在成为必然。侦查信息媒介指的是侦查活动中侦查主体与相关人和物进行沟通以求获得信息所凭借的载体。侦查信息媒介分为言辞媒介和技术媒介,二者在本质、运用媒介和效益上存在着显著的差异。侦查信息媒介面临着相应的困境,包括言辞媒介和技术媒介自身的不稳定性和运用过程中滋生的冲突。侦查信息媒介应该从依赖言辞媒介转向以技术媒介为主,并相辅相成。     

China–Pakistan Economic Corridor (CPEC) development projects and entrepreneurial potential of locals

This research explores a very important issue arising from the initiation of China–Pakistan Economic Corridor (CPEC) in Pakistan, as the major impact seems to be focused towards small businesses and how they will cope in this competitive market once Chinese businesses enter in the country. According to scholars and officials, CPEC will generate several business opportunities for the local Pakistani community. However, studies related to the CPEC project are limited and only focused on the development of the CPEC project in various aspects alone. The existing study examined the local entrepreneur's attitude and intention in the context of CPEC using a sample of 255 survey questionnaires. Structural equation modeling was used to test the proposed hypotheses. Data were gathered from the existing business community in Karachi, Pakistan. The results validated most of the hypotheses showing positive attitude towards entrepreneurs and intention towards CPEC development project. Specifically, local transportation and accessibility of cities show a significant relationship with a positive attitude. Similarly, the attitude of entrepreneurs also shows a positive relationship with entrepreneur's intention towards CPEC development projects. Findings have important theoretical and practical implications for policymakers of CPEC in creating an overall entrepreneurial ecosystem.     

The Influence of News Media on Political Elites: Investigating Strategic Responsiveness in Congress

News media play a central role in democratic politics, yet we know little about how media affect the behavior of policy makers. To understand the conditions under which news media influence political elites, we advance a theory of strategic responsiveness, which contends that elected representatives are more likely to heed their constituents' preferences when voters are attentive. Accordingly, news media's influence on legislative behavior should be most apparent near elections and dependent on the partisan composition of the constituency. We capitalize on the incremental rollout of the conservative Fox News Channel in the late 1990s to evaluate our theoretical predictions. Fox News caused both Republicans and Democrats in Congress to increase support for the Republican Party position on divisive votes, but only in the waning months of the election cycle and among those members who represent districts with a sizable portion of Republican voters.     

Trading amnesty for impunity in Timor-Leste

In 1999, the United Nations made a strong stand against impunity for human rights crimes by prohibiting the inclusion of blanket amnesties in peace agreements. This article examines the impact of the UN’s anti-amnesty policy on one of the first states to be affected by it, Timor-Leste. It argues that even in the absence of an amnesty, more than 15 years after independence impunity still reigns in Timor-Leste, due a lack of judicial capacity, political interference, the persistent belief that amnesties facilitate reconciliation, and an unwillingness on the part of the international community to adequately fund the justice process. That is, this article argues that the UN has oversold its position on amnesties, and that although its anti-amnesty policy is taking hold, in the case of Timor-Leste at least, justice seems as elusive as ever.     

Attempted Serial Neonaticides: Case Report and a Brief Review of the Literature

Neonaticide is an infant murder occurring on the day of birth. The case reports found in the literature are often focused on the mother as the agent in the context of pregnancy denial, dissociative symptoms, or psychosis. However, this report describes a rare case of attempted serial neonaticides, in which the acts were committed by a nurse at the nursery of a referral hospital in Brazil. The authors describe a forensic psychiatric evaluation for criminal responsibility and correlate the information from this particular case with relevant forensic themes, namely neonaticide, Munchausen by proxy syndrome, and serial healthcare killers.     

Latent Fingermark Aging Patterns (Part II): Color Contrast Between Ridges and Furrows as One Indicator of Degradation

Currently, no established methodology exists to determine degradation patterns of latent fingermarks by visual means. This article is the second in a series of reports exploring quantifiable degradation‐related parameters, which focuses on color contrast changes between fingermark ridges and furrows over time. Experiment variables included type of secretion (eccrine and sebaceous), substrate (glass and plastic), and exposure to natural light (dark, shade, and direct light). Fingermarks were sequentially visualized with titanium dioxide powder and photographed. Image histogram profiles were evaluated and combined with statistical analysis of color data values. Results indicate that sebaceous depositions on glass were generally less degraded by the effect of environmental conditions compared with those on plastic. In addition, aging in darkness was not always the best condition for preservation, and direct exposure to light seemed to inhibit visual degradation under certain conditions. Overall, the technique provided sufficient sensitivity to discern degradation patterns of fingermarks.     

Schauer on Coercion,Acceptance, and Schizophrenia

This article provides a comment on The Force of Law (Schauer 2015), which is Schauer's new and illuminating contribution to the place of law in our societies and in our lives. It constitutes a strong defence of the importance of coercion in law. First, I consider cases where the law is not able to motivate human behaviour adequately, in order to show that legal coercion is not always justified. Second, I examine the Rawlsian distinction between the ideal and the nonideal theory and its application to the theory of law. Third, I tentatively argue that coercion has no place in ideal theory, but a core place in nonideal theory. In this way, it may be plausible to reconstruct the motivation to accept the law, at least when the law is normatively justified.     

Measuring Party Identification: Britain, Canada, and the United States

The article proposes an empirically based reflection on how to measure party identification cross nationally, using data from the 1997 Canadian Election Study, the 1997 British Election Study, and the 1996 American National Election Study. These studies included both traditional national questions and a new common one, which allows for an assessment of the effects of question wording on the distribution and correlates of party identification. We show that the distribution of party identification is strongly affected by question wording and that the relationship between party identification and variables such as party and leader ratings, and voting behavior does not quite conform to theoretical expectations. We point out problems in the wording of party identification questions and propose an alternative formulation.