An extremely sensitive species-specific ARMs PCR test for the presence of tiger bone DNA

The survival of the tiger (Panthera tigris) is seriously threatened by poaching to provide raw materials for Traditional Chinese Medicines (TCMs). Most highly prized are the tiger's bones, which are used in combination with other animal and plant derivatives in pills and plasters for the treatment of rheumatism and other ailments. Hundreds of patent remedies have been produced which claim to contain tiger bone, but proof of its presence is needed, if legislation prohibiting the trade in endangered species is to be enforced. A highly sensitive tiger-specific real-time PCR assay has been developed to address this problem. Using primers specific to the tiger mitochondrial cytochrome b gene, successful amplification has been reliably achieved from blood, hair and bone as well as from a range of TCMs spiked with 0.5% tiger bone. Although capable of detecting fewer than 10 substrate molecules, the seven varieties of TCM pills and plasters tested showed no detectable trace of tiger DNA before spiking. Furthermore, sequencing several "tiger bone" fragments seized from TCM shops has shown that they actually originated from cattle and pigs. The potential effects of traditional bone preparation methods, evidence that much lower concentrations are used than alleged on TCM packaging, and substitution of bones from other species all suggest a low likelihood of detecting tiger DNA in patent medicines. Despite this, the basic methods have been thoroughly proven and can be readily applied to derivatives from other CITES protected species providing a rapid and highly sensitive forensic test for species of origin. Potential applications to the monitoring of wild populations are demonstrated by the successful identification of shed hairs and faecal samples.     

An assessment of the relative impact of criminal justice and criminology journals

The current study was undertaken to provide an impact assessment of criminal justice and criminology journals as an alternative measure to the prestige survey ratings reported by Sorensen, Snell, and Rodriguez (2006). Citations to sixty-seven target journals were tallied from ten top criminal justice and criminology journals. Various impact measures were fairly consistent with one another and the prestige survey ratings, particularly for a “top tier” of journals. With a couple of notable exceptions, a long-standing core of these elite journals has held their relative positions from early impact studies relying on data from the 1970s and 1980s; nevertheless, significant deviations were noted based on the measurement utilized for all but the top journals. Findings from the current study suggested that the quality of journals is multifaceted and warns against employing a scale based on one dimension of journal quality.     

Gender differences in research productivity among criminal justice and criminology scholars

Prior research suggests gaps in productivity by gender in the fields of criminal justice and criminology as well as other academic disciplines. Utilizing survey data from a sample of ASC and ACJS members, this study examined the overall extent of disparity in publishing between female and male academics. It also examined the impact of background, departmental, professional, work load characteristics, and other academic factors on publishing. While males published more than females, the disparity was reduced once other relevant variables, such as career length, time devoted to research, rank, and teaching in a program offering a masters or doctorate, were considered. Finally, the factors that influence productivity among male scholars were found to have a similar effect on female scholarship.     

Protecting personal data in wartime: The destruction of the alphabetic tabulators in Oslo

As a contribution to this special issue of CLSR, Jon Bing offers a unique wartime account of one of the earliest attempts to prevent ‘online processing’ of personal data by the occupying authorities for oppressive purposes.     

Suspect burial excavation procedure: A cautionary tale

Geographic location, time of reporting and need for rapid evaluation contributed to a lack of intelligence concerning a suspect burial site in scrub woodland (～15 km from the last known location of a missing person) in Northern Ireland. Police received reports of a subsiding ‘grave’, which was evaluated positively using GPR and victim recovery dogs (VRD). After 24 h work, archaeological excavation showed a vertical-sided, stepped excavation on undisturbed clay with no inhumation. Subsequent research showed the feature to be an engineering trial pit. The GPR response was a water table and rocks, VRD were possibly reacting to disturbed ground. The work serves as a demonstration of good archaeological practice in suspect burial excavation, following a lack of landscape evaluation and poor overall intelligence.     

Genetic variability of RyR2 and CASQ2 genes in an Asian population

We analyzed the coding regions of the cardiac calcium-handling genes, ryanodine receptor 2 (RyR2) and calsequestrin 2 (CASQ2) for genetic variants in a healthy Chinese population (n = 95) and in a cohort of 28 sudden unexplained death victims. Mutations in RyR2 and CASQ2 have been shown to alter calcium homeostasis during excitation–contraction coupling and predispose individuals to fatal cardiac arrhythmias. The genetic screening was accomplished by denaturing high-performance liquid chromatography and DNA sequencing methods. Genetic analysis revealed the following non-synonymous genetic variations: two reported RyR2 polymorphisms; 5654G>A (G1885E) and 5656G>A (G1886S), two reported CASQ2 polymorphisms; 196A>G (T66A) and 226G>A (V76M) and one novel CASQ2 mutation; 529G>C (E177Q). The functional significance of the novel CASQ2 mutation has not been evaluated and characterized. This study shows that multiple genetic variations of the RyR2 and CASQ2 genes exist in the two study populations. The inter-individual genetic variability may underlie the different susceptibility of individuals to developing ventricular tachycardia. The research results will be valuable for which future work involving clinical and forensic samples can be based upon to distinguish potential disease-associated mutations from common polymorphisms.     

Filicide-suicide in Chicago, 1870-1930

Filicide (the killing of a child by a parent) followed by the offender's suicide is a tragic but, fortunately, rare event. The contexts and circumstances surrounding filicide-suicide may provide insight into parental psychology. The authors test several hypotheses about filicide-suicide using a database including incident-level information on 11,018 Chicago homicides during 1870-1930. The results provide some support for the hypothesis of differential risk of suicide following filicide by genetic parents and stepparents and replicate previous research indicating that filicides with multiple victims are more likely to end in the offender's suicide than are filicides with a single victim; parents are more likely to commit suicide following the filicide of an older child than of a younger child; and older parents, relative to younger parents, are more likely to commit suicide following filicide. The discussion situates these results within the existing literature and highlights important directions for future research.