Optimization of Headspace Solid‐Phase Microextraction Technique for Extraction of Volatile Smokeless Powder Compounds in Forensic Applications

Smokeless powders are low explosives and are potentially found in cases involving firearms and improvised explosive devices. Apart from inorganic compound analysis, forensic determination of organic components of these materials appears as a promising alternative, especially the chromatographic techniques. This work describes the optimization of a solid‐phase microextraction technique using an 85 μm polyacrylate fiber followed by gas chromatography‐flame ionization detection for smokeless powder. A multivariate experimental design was performed to optimize extraction‐influencing parameters. A 2⁴ factorial first‐order design revealed that sample temperature and extraction time were the major influencing parameters. Doehlert matrix design has subsequently selected 66°C and 21 min as the compromised conditions for the two predetermined parameters. This extraction technique has successfully detected the headspace compounds of smokeless powders from different ammunition types and allowed for their differentiation. The novel technique allows more rapid sample preparation for chromatographic detection of smokeless powders.     

Statistical Evaluation of Alternative Light Sources for Bloodstain Photography

Bloodstain photography is important in forensic applications, especially for bloodstain pattern analysis. This study compares the enhancement effect of bloodstain photography using three different types of light source: fluorescent white light, near‐ultraviolet (UV) light‐emitting diode (LED) light, and 410 nm LED light. Randomized complete block designs were implemented to identify the lighting that would statistically produce the best enhancement results for bloodstains on different types of surfaces. Bloodstain samples were prepared on white cotton, brown carpet, tar road, and wood. These samples were photographed in darkroom conditions using a Canon EOS 50D digital SLR camera, with Canon EFS 60 mm f/2.8 Macro USM lens. Two‐way analysis of variance and Fisher's least significant difference test were used to analyze the contrast of the images. The statistical analysis showed that 410 nm light is the best among the tested lights for enhancing bloodstains on the tested surfaces, where the contrast of bloodstain to background was the highest.     

The Revolution and the Criminal Law

Egyptians had many reasons to overthrow the government of Hosni Mubarak, and to challenge the legitimacy of the interim military government. Strikingly, among the leading reasons for the uprising and for continued protest are reasons grounded in criminal justice. Reflection on this dimension of the Egyptian uprising invites a broader examination of the relationship between criminal justice and political legitimacy. While criminal justice is neither necessary nor sufficient for political legitimacy, criminal injustice substantially undermines political legitimacy and can provide independent reasons for revolution. A state may compromise its legitimacy by committing criminal acts, by perverting or subverting the criminal process, and by failing to discharge its duty to punish serious wrongdoing—a duty that then falls to individuals to discharge either directly (through vigilantism) or indirectly (through revolution). Contrary to the views of many leading criminal law theorists, the duty to punish serious wrongdoing applies to individuals and not only to states. The relevance of political legitimacy to criminal justice is more complicated. Individuals are morally obligated to follow the morally justified laws of an illegitimate state, but are not morally obligated to follow the morally unjustified laws of a legitimate state. Nor may any state punish in the absence of moral wrongdoing and moral fault. However, illegitimate states may be incapable of justly holding individuals accountable to the state, to the community, or to victims through criminal trials. This incapacity provides an additional reason to overthrow illegitimate states and replace them with legitimate states capable of justly administering a just criminal law.     

Contactless Visualization of Latent Fingerprints on Nonporous Curved Surfaces of Circular Cross Section

Nondestructive techniques for gathering evidence are important in the field of forensics. Due to the geometry of the substrates, nondestructive visualization of fingermarks on curved surfaces remains challenging. A novel contactless technique was developed for visualizing and recording fingermark patterns on nonporous curved surfaces of circular cross section. The technique utilizes a plane mirror to transmit rays from a light source to illuminate the area of interest for fingermark visualization. The fingermark acquisition system consists of a digital single‐lens reflex (SLR) camera, a plane mirror, and a white light source. Mathematical equations are used to calculate the mirror size. Experiments were performed on various curved surfaces to determine the feasibility and effectiveness of the technique. Spectral Image Validation and Verification (SIVV) was used to analyze the captured images. The results of this study indicate that the technique described here is able to reveal fingermark patterns on curved surfaces of circular cross section.     

Conceptualization of Intimate Partner Violence: Exploring Gender Differences Using Concept Mapping

While numerous studies have explored prevalence and determinants of intimate partner violence (IPV), one area that has yet to be sufficiently explored is whether men and women agree on the acts, behaviours, and attitudes that comprise IPV. Through the use of concept mapping, we examined the similarities and differences in the conceptualization of IPV among a diverse sample of men and women. Although men and women conceptualized physical and sexual violence similarly, men tended to rate non-physical behaviors related to control as less important to the definition of IPV than women. Moreover, even when men and women used similar labeling language for grouping of items, the statements included in each cluster were substantially different for non-physically abusive items. A greater understanding of similarities and differences in the conceptualization of IPV by gender can help inform appropriate gender specific IPV intervention and prevention efforts.     

A Critical Appraisal of 'Triple Divorce' in Islamic Law

The issue of the ‘triple divorce’ is regarded ashighly sensitive among the Muslims, not only in India but elsewhere.The Holy Qur’an is very cautious in matters of divorce.Three talaqs have to be spaced over a period of 3 months togive husband and wife time for reconciliation through the interventionof relatives and friends. Moreover, talaq can be pronouncedonly when the wife is in a state of tuhur, ie purity after menstruation.Yet, despite clear Qur’anic injunctions to the contrary,immediate triple divorce is permitted, destroying marital lifein one breath. The practice of immediate triple divorce is widespreadamong Sunni Muslims and has legal validity. Even then the juristscall it a talaq-e-Bidat (innovative form of divorce). The disputehas been highlighted by reports of some Muslims instantly divorcingtheir wives by mail, over the telephone, and even through mobilephone text messages. This article explains the different theoriesof divorce prevailing in the contemporary Muslim world and whatchecks and restraints have been imposed by Islam over the exerciseof husband's power of talaq. The article critically appraisesthe ‘innovative triple divorce’ by examining whetherit is sanctioned by the Holy Quran or the sunnah and if thereis a consensus of opinion (ijma) on the effectiveness of tripledivorce.     

Support for Palestinians among Jewish Americans: the importance of education and contact

The violent and protracted Israeli–Palestinian conflict continues, and Jewish Americans play a significant role in influencing related US foreign policy as well as in promoting positive interactions with Palestinians globally. Diaspora populations have played an important role in international peace processes and American Jews are actively involved in peace efforts for Palestinian human rights. Previous research indicates a relationship between views about Israel, knowing Palestinian narratives, and promoting peace processes. Thus, the attitudes and experiences that Jewish Americans have are important to understand and predicting their support for Palestinians. An online internet survey distributed to Jewish listservs (n = 173) measured variables of gender, age, political views, Jewish socialization, family and own attitudes about Israel, courses on the conflict, and having been to the West Bank. Results indicated younger, more liberal Jewish Americans who had taken courses and been to the West Bank predicted more support for Palestinians. Implications for future research and education as an important process in moving the peace process forward both through interpersonal relationships and public policy efforts are discussed.