Forensic veterinary radiology: Ballistic-radiological 3D computertomographic reconstruction of an illegal lynx shooting in Switzerland

The lynx, which was reintroduced to Switzerland after being exterminated at the beginning of the 20th century, is protected by Swiss law. However, poaching occurs from time to time, which makes criminal investigations necessary. In the presented case, an illegally shot lynx was examined by conventional plane radiography and three-dimensional multislice computertomography (3D MSCT), of which the latter yielded superior results with respect to documentation and reconstruction of the inflicted gunshot wounds. We believe that 3D MSCT, already described in human forensic-pathological cases, is also a suitable and promising new technique for veterinary pathology.     

Human Identification via Lateral Patella Radiographs: A Validation Study,

This research examines the utility of patella outline shape for matching 3D scans of patellae to knee radiographs using elliptical Fourier analysis and subjective methods of human visual comparison of patellae across radiographs for identification purposes. Repeat radiographs were captured of cadaver's knees for visual comparison before patellae were extracted and skeletonized for quantitative comparisons. Quantitative methods provided significant narrowing down of the candidate pool to just a few potential matches (<5% of original sample), while the human analysts showed high capacity for correctly matching radiographs, irrespective of educational level (positive predictive value = 99.8%). The successful computerized matching based on a single quantified patella trait (outline shape) helps explain the potency achieved by subjective visual examination. This work adds to a growing body of studies demonstrating the value of single isolated infracranial bones for human identification via radiographic comparison.     

Quantification of Perspective‐Induced Shape Change of Clavicles at Radiography and 3D Scanning to Assist Human Identification

Change in perspective between antemortem and postmortem imaging sessions (radiograph to radiograph and surface scan to radiograph) may cause different 2D renderings of the same osseous element complicating comparisons for identification. In this study, clavicle shape changes due to radiographic positioning and 3D laser scanning were examined in 20 right‐side specimens, as pertinent to chest radiograph comparisons. Results indicate substantial changes in clavicle form with short source‐to‐image receptor distance, elevation of the element from the image receptor, and movement of the element away from the center beam (10% mean square for shape). Although quantitative shape differences were small when the clavicle was in close opposition to the image receptor (3% mean square), important qualitative differences remained with large distances from the center beam (e.g., conoid tubercle presence/absence). The significance of these results for image superimposition and computer‐automated‐shape‐based searches of radiographic libraries to find matching candidates is discussed.     

Safeguarding Common-Pool Resources in Transition Economies: Experimental Evidence from Central Asia

Empirical evidence suggests that the propensity to cooperate in common pool resource dilemmas is higher for small, homogeneous groups with efficacious monitoring and sanctioning mechanisms. Given that transition from socialist to market economies is associated with larger, more heterogeneous groups with diluted opportunities for monitoring and sanctioning, individuals in later-stage transition economies may be expected to be less cooperative than their early-stage counterparts. However, evidence from experiments conducted with subjects in two economies at different stages of transition suggests that this may not be the case. These findings have implications for both theorists and practitioners alike.     

Estimating the Skull‐to‐Camera Distance from Facial Photographs for Craniofacial Superimposition

The overlay of a skull and a face image for identification purposes requires similar subject‐to‐camera distances (SCD) to be used at both photographic sessions so that differences in perspective do not compromise the anatomical comparisons. As the facial photograph is the reference standard, it is crucial to determine its SCD first and apply this value to photography of the skull. So far, such a method for estimating the SCD has been elusive (some say impossible), compromising the technical validity of the superimposition procedure. This paper tests the feasibility of using the palpebral fissure length and a well‐established photographic algorithm to accurately estimate the SCD from the facial photograph. Recordings at known SCD across a 1–10 m range (repeated under two test conditions) demonstrate that the newly formulated method works: a mean SCD estimation error of 7% that translates into <1% perspective distortion error between estimated and actual conditions.     

Cartel Laws Undermined: Corruption,Social Norms,and Collectivist Business Cultures

The combination of leniency programmes, high sanctions, complaints from customers and private actions for damages, has proven very successful at uncovering and punishing cartel agreements in United States Antitrust Law. Countless jurisdictions are being encouraged to adopt these ‘conventional’ enforcement tools, in the absence of an international competition authority. This paper identifies three issues which may undermine the universal efficacy of these cartel laws: (i) corruption and organized crime; (ii) social norms that are sympathetic to collusive practices; (iii) collectivist business cultures built on personal relationships.     

Governing complexity: How can the interplay of multilateral environmental agreements be harnessed for effective international market-based climate policy instruments?

International Environmental Agreements: Politics, Law and Economics - Major new multilateral environmental agreements (MEAs) have entered into force in 2016, including the Paris Agreement (PA)...