Data fragment forensics for embedded DVR systems

A recent increase in the prevalence of embedded systems has led them to become a primary target of digital forensic investigations. Embedded systems with DVR (Digital Video Recorder) capabilities are able to generate multimedia (video/audio) data, and can act as vital pieces of evidence in the field of digital forensics.To counter anti-forensics, it is necessary to derive systematic forensic techniques that can be used on data fragments in unused (unallocated) areas of files or images. Specifically, the techniques should extract meaningful information from various types of data fragments, such as non-sequential fragmentation and missing fragments overwritten by other data.This paper proposes a new digital forensic system for use on video data fragments related to DVRs. We demonstrate in detail special techniques for the classification, reassembly, and extraction of video data fragments, and introduce an integrated framework for data fragment forensics based on techniques described in this paper.     

Reverse engineering a CCTV system,a case study

Given a disk image of a CCTV system with a non-standard file system, how is the data interpreted? Work has been done in the past detailing the reverse engineering of proprietary file systems and on the process of recovering data from CCTV systems. However, if given a disk image without the CCTV system itself, or if under time constraints, the task becomes much more difficult. This paper explains a different approach to recovering the data and how to make sense of data on a CCTV disk. The method does not require extensive reverse engineering of the CCTV system, or even to have access to the CCTV system itself.     

IoT forensics: Exploiting log records from the DAHUA technology CCTV systems

CCTV surveillance systems are ubiquitous IoT appliances. Their forensic examination has proven critical for investigating crimes. DAHUA Technology is a well-known manufacturer of such products. Despite its global market share, research regarding digital forensics of DAHUA Technology CCTV systems is scarce and currently limited to extracting their video footage, overlooking the potential presence of valuable artifacts within their log records. These pieces of evidence remain unexploited by major commercial forensic software, yet they can hide vital information for an investigation. For instance, these log records document user actions, such as formatting the CCTV system's hard drive or disabling camera recording. This information can assist in attributing nefarious actions to specific users and hence can be invaluable for understanding the sequence of events related to incidents. Therefore, in this paper, several DAHUA Technology CCTV systems are thoroughly analyzed for these unexplored pieces of evidence, and their forensic value is presented.     

Networks and political engagement of migrant organisations in five European cities

This article investigates networks and political actions by migrant organisations in five European cities. It examines how political opportunity structures moderate the impact of organisational networks on organisations' political contacts and protests using data from organisational surveys undertaken between 2005 and 2008 in Budapest, Lyon, Madrid, Milan and Zurich. Results suggest that the political context moderates the role that different types of networks have on mobilisation. It is found that migrant organisational networks may be sources compensating for the lack of contextual opportunities, thus fostering the use of protest by migrant organisations. However, migrant organisational networks can also favour the creation of political subcultures, marginalised from mainstream politics. Finally, migrant networks are likely to foster migrant organisations' political integration in multicultural contexts through conventional as well as non‐conventional politics.     

Modernism's Legacy: Dialogue,Objectivity, and Justice in Mark Bevir's Democratic Governance

This article looks at Mark Bevir's ideas on the changing nature of the modern state, as expressed in his book, ‘Democratic Governance’. In the book, the author argues that recent developments in the theory and practice of politics have their intellectual roots in wider trends in the academic study of society and politics. In particular, he argues, the rise in what he and others have called ‘the new governance’ – that is, the shift in Britain and elsewhere away from centralised policy making and implementation by state institutions toward policy networks in which the state is merely one actor among many – has emerged as a direct consequence of the rise of ahistorical, universalist social science methodologies.     

Expert network interaction in the European Medicines Agency

The need for supranational regulatory capacity and the drive for governmental control are two colliding forces in international governance. As a solution to this governance dilemma, European administrative networks need to simultaneously fulfill the demand for supranational institutions and maintain governmental control. The assessment of risks associated with medicines authorized on the European market is carried out by such a network of national regulators as part of the European Medicines Agency. To uncover how these double-hatted experts navigate the opportunity structures created by supranational and intergovernmental forces, this study employs social network analysis. Developing exponential random graph models, this study tests to what extent members can act as professional experts in service of the supranational administration and to what extent national features shape interaction. The results indicate that while PRAC members are socialized as professionals in service of supranational deliberation on pharmacovigilance, intergovernmental forces do structure their interactions.     

Asserting integrity in Mexico's civic sector

In societies where civic space is closing, integrity in the civic sector is critical for its sustainability. Where state regulatory frameworks are inadequate, or worse, manipulative, self-regulation can help defend the sector's integrity and strengthen the ability of civic associations to serve the public and contribute to democracy. This paper describes the strategic role in self-regulation of a particular type of third sector actor in Mexico, the coordinating body or civic network. A case study of the Mexican Center for Philanthropy (CEMEFI) and its Accreditation in Institutionalization and Transparency project illustrates the contribution of NGO networks in service to the sector, and their key role in diffusion of norms of transparency and accountability within the civic sector and beyond.