Analyse von heroinproben mit der Kapillargaschromatographie. Vergleich von Glaskapillartrennsäule und gepackter Säule

In forensic examination of illicit heroin samples high-resolution capillary gas chromatography is compared with gas chromatography with packed columns. Separation efficiency, reproducibility of qualitative and quantitative determinations and stability of the columns are examined.A practical method with silylation of the samples is presented which allows safe identification and quantification of many various compounds contained in illicit heroin samples. The gas chromatographic data of 35 substances (opium alkaloids and synthetic derivatives, adulterants and diluents) are listed. The method also allows the quantification of morphine, opium, and cocaine samples.     

Drugs in oral fluid: Part II. Investigation of drugs in drivers

As part of the European project, Impaired Motorists, Methods of Roadside Testing and Assessment for Licensing, otherwise known as IMMORTAL (Deliverable R4.2), the University of Glasgow was required to analyse 1396 oral fluid samples, collected from drivers, for a wide range of drugs. A previously described method to include 49 drugs and metabolites was used. To include cannabis in the study a separate extraction method was required because of interferences caused by the collection device. The study group included drivers who were stopped at random and participation was entirely voluntary. The results showed that out of the 1396 samples tested, 16.8% were positive for at least one drug. In the majority of positive cases (85%), monodrug use was found and the most commonly detected drug was 3,4-methylenedioxymethamphetamine. This study showed that a significant number of the driving population are positive for at least one drug.     

The Use of Force in British Foreign Policy: From New Labour to the Coalition

This article studies the ideational underpinnings of the UK Coalition government's ‘liberal conservative’ foreign policy. It begins by suggesting that an Iraq‐centric account of Blair's foreign policy suggests a grand vision on the prime minister's part that was lacking from his earlier foreign policy adventures, which relied on a more conventional form of British statecraft. The second section contends that the Gordon Brown years 2007–10 and, since the end of New Labour, Coalition foreign policy, can be seen as a response both to the substance and style of Blair's highly personalised stewardship of foreign policy post‐9/11. The war on terror and the invasion of Iraq were accompanied by a seemingly open‐ended democracy promotion around the globe which was quite out of character with past British practice. The article argues, therefore, that under Brown and Cameron cautious pragmatism has tended to win out over the proclamation of grand strategic ambition.     

The Apollo 8 Genesis Reading and Religion in the Space Age

Between January 1969 and the summer of 1975, NASA received over eight million letters and petition signatures supporting the right of American astronauts to free religious expression in space. Prompted by Madalyn Murray O'Hair's complaints about the reading of Genesis during the flight of Apollo 8, the petition campaign points to the complex ambivalent relationship between religious Americans and their nation's space program. The Genesis reading had provided reassurance that the program, with its secular motivations, its instrumental culture, and its designs upon God's very heavens, was not hostile to faith. But what if NASA now yielded to O'Hair? The petitions flowed in the eschatological anxiety that the sacred space of the skies might be cleared of Christian speech.     

A Bayesian approach for interpreting shoemark evidence in forensic casework: accounting for wear features

Shoemark evidence remains a cornerstone of forensic crime investigation. Shoemarks can be used at a crime scene to reconstruct the course of events; they can be used as forensic intelligence tool to establish links between crime scenes; and when control material is available, used to help infer the participation of given individuals to the commission of a crime. Nevertheless, as for most other impression evidence, the current process used to evaluate and report the weight of shoemark evidence is under extreme scrutiny. Building on previous research, this paper proposes a model to evaluate shoemark evidence in a more transparent manner. The model is currently limited to sole pattern and wear characteristics. It does not account formally for cuts and other accidental damages. Furthermore, it requires the acquisition of relevant shoemark datasets and the development of automated comparison algorithms to deploy its full benefits. These are not currently available. Instead, we demonstrate, using casework examples, that a pragmatic consideration of the various variables of the model allows us to already evaluate shoemark evidence in a more transparent way and therefore begin to address the current scientific and legal concerns.