Determination of opiates in postmortem bone and bone marrow.

Bone and bone marrow of a fatally poisoned heroin addict were analyzed by FPIA and GC-FID, immediately after death. A piece of the bone from the above case was buried for 1 year and analyzed by the same procedure. Morphine was detected in all specimens at concentrations of 195, 340 and 155 ng/g for bone marrow, bone and buried bone, respectively. A loss of 54.4% of morphine concentration was observed during 1-year burial. Such findings have potential forensic value in cases of skeletonized remains.     

The natural sampling of airborne trace signals from explosives concealed upon the human body.

An experimental study of the natural sampling of trace signals from explosives concealed upon the human body was performed by taking proper account of the thermal behavior of the air surrounding the human body and the particles therein. Experiments were conducted in a dispersal chamber to identify variables affecting the detectibility of concealed RDX and TNT patches. Movement by human volunteers was found to enhance the available explosive trace signal above a baseline level. Clothing blocked some of this movement-generated trace signal. The detected signal levels were also found to vary significantly from volunteer to volunteer, indicating that human variability is an issue in explosive trace detection. Further, under the conditions studied here, the detectibility of RDX and TNT was dependent upon the efficient sampling of contaminated particulate matter, not the vapor phase. The present results are now being applied to the design of a practical, nonintrusive trace detection portal for aviation security screening and related applications.     

The illicit arms trade: Cold War and Post-Cold War

This article considers the principal changes that haveoccurred in the illicit arms trade across the Cold Warand post-Cold War periods. It discusses the changednature of demand and the sources and means ofillicitly supplying arms to areas of conflict. Througha number of case studies it highlights the declininguse of illicit arms supply as a foreign policy tool,and the extent to which involvement in the trade isnow determined more by profit than policyconsiderations, with all the implications thesechanges have for control initiatives.     

Deciding to Keep Peace: An Analysis of International Influences on the Establishment of Third-Party Peacekeeping Missions

Since the end of World War II, and particularly since the end of the Cold War, there has been an expansion in the number of third-party peacekeeping missions established throughout the world. Most of the expansion in peacekeeping missions in the past decade or so has occurred in states experiencing intrastate or civil conflicts. The questions addressed in this study are under what conditions do third-party actors either decide to establish or decide not to establish peacekeeping missions in intrastate disputes, and specifically, what effect do international-level factors have on the likelihood that third-party peacekeeping personnel will be deployed in an intrastate dispute? The previous literature on third-party peacekeeping and interventions is used to derive a set of theoretical arguments and hypotheses regarding the establishment of peacekeeping missions by third-party actors (the United Nations, regional organizations, and ad hoc groups of states) during the post-World War II period. Specifically, I argue that several factors originating at the level of the international system influence the occurrence of third-party peacekeeping missions. The results of statistical analyses of the hypotheses largely support the notion that a set of international-level factors significantly influences the decisions of third-party actors to establish or not establish third-party peacekeeping missions, that international-level factors are more important than state-level factors, that these factors often have different effects on the likelihood of different types of third-party peacekeeping.