Effect of Aging and Surface Interactions on the Diffusion of Endogenous Compounds in Latent Fingerprints Studied by Mass Spectrometry Imaging,

The ability to determine the age of fingerprints would be immeasurably beneficial in criminal investigations. We explore the possibility of determining the age of fingerprints by analyzing various compounds as they diffuse from the ridges to the valleys of fingerprints using matrix‐assisted laser desorption/ionization mass spectrometry imaging. The diffusion of two classes of endogenous fingerprint compounds, fatty acids and triacylglycerols (TGs), was studied in fresh and aged fingerprints on four surfaces. We expected higher molecular weight TGs would diffuse slower than fatty acids and allow us to determine the age of older fingerprints. However, we found interactions between endogenous compounds and the surface have a much stronger impact on diffusion than molecular weight. For example, diffusion of TGs is faster on hydrophilic plain glass or partially hydrophilic stainless steel surfaces, than on a hydrophobic Rain‐x treated surface. This result further complicates utilizing a diffusion model to age fingerprints.     

Drug Contamination of U.S. Paper Currency and Forensic Relevance of Canine Alert to Paper Currency: A Critical Review of the Scientific Literature

Several studies have reported on wide‐spread contamination of U.S. paper currency with cocaine and to a lesser extent other illicit drugs. Canines are trained and employed to search for and alert to drugs. Canine alert to currency has been used as evidence that currency has been directly involved in illicit drug trafficking to justify currency seizure and forfeiture. This assertion, particularly when the only evidence is based upon canine alert, has been challenged in the courts considering that most currency in circulation is contaminated with cocaine. Comprehensive review of the scientific literature establishes that (i) 67–100% of circulated U.S. currency is contaminated with cocaine ranging from a few nanograms to over one milligram/bill (ii) various biological and environmental parameters impact canine alert to drugs. It is concluded that canine alert to U.S. currency is not sufficiently reliable to determine that currency was directly used in an illicit drug transaction.     

The Effect of Prior Police Contact on Victimization Reporting: Results from the Police–Public Contact and National Crime Victimization Surveys

Objectives

This study explores the association between past-year face-to-face contact with the police and subsequent victimization reporting. It also examines whether this relationship depends on the type of encounter (citizen-initiated contacts, routine vehicle stops, invasive encounters associated with being a suspect), its perceived justness, or victim characteristics. Among victims who did not notify the police, the reasons behind this decision are assessed to understand the mechanisms through which police encounters are related to reporting.

Methods

This research is the first to use longitudinal data that link the 2002, 2008, and 2011 Police Public Contact Surveys to the 2002–2014 National Crime Victimization Surveys. Multivariate logistic regression is used to examine the effect of prior contact on police notification among victims of personal (N = 1073) and household (N = 11,433) crimes.

Results

Prior contact with the police has no main effect on the reporting of personal crimes; however, the negative effects of police-initiated and unjust contact are amplified for the poor and African Americans. The reporting of household crimes varies based on prior police experiences and whether they were viewed as just. Personal crime victims with invasive contact are more likely than other contact groups to attribute non-reporting to fear of reprisal.

Conclusions

Using national data tells a complex story about how race/ethnicity, poverty, and recent experiences with the police interact to shape victims’ behavior. The intricacies of these findings suggest that efforts to increase reporting may need to be multifaceted and address victims’ concerns about safety and justness.

     

Confessions of a Criminal Psychopath: an Analysis of the Robert Pickton Cell-Plant

Police interrogation methods have changed over time. While traditional techniques relied on violence and physical torture, modern techniques have shifted toward psychological coercion and manipulation. These techniques, most widely known as parts of The Reid Technique, have proven to be a powerful way to elicit confessions of guilt from suspected criminals. Authors of the Reid Technique claim that when applied correctly, their methods lead to significant increases in police confession rates. But, these techniques are not universally useful. In addition to eliciting false confessions, the Reid Technique has been less effective on psychopaths—who are self-centered, manipulative, and lack empathy. Psychopaths can be resistant to these methods, which rely on the interrogator’s ability to induce fear, anxiety, and feelings of remorse in the suspect. When confronted with a criminal psychopath, interrogators face unique challenges requiring a different approach to interrogation. To show this, we analyze the cell plant video of an undercover officer who obtained a serial murder confession from Robert Pickton by appealing to his narcissism. We conclude by offering a few additional strategies that can be used by investigators when interrogating psychopaths.     

Isolation and characterisation of a novel sildenafil analogue adulterant,desmethylpiperazinyl propoxysildenafil,in a dietary supplement

A new sildenafil analogue was detected during routine screening of dietary supplements suspected to be adulterated with an erectile dysfunction drug(s) using HPLC-DAD. The UV spectrum of this compound was highly similar to that of sildenafil and almost identical to that of desmethylpiperazinyl sildenafil. The analogue was purified by using semi-preparative HPLC and structurally elucidated by performing mass spectrometric and NMR spectroscopic experiments. The spectral data revealed that this sildenafil analogue bears an n-propoxy group instead of an ethoxy group and possesses no methylpiperazinyl moiety. The isolated compound, structure of which was further confirmed by spectral comparison with synthetic one, was thus named as desmethylpiperazinyl propoxysildenafil.     

The role of Title IV-E education and training in child protection workforce diversification

ABSTRACT

Educating, training, and diversifying the workforce are strategies that may help reduce racial/ethnic disparities that plague child protection system (CPS). Title IV-E education and training programs support the development of a specially trained, highly skilled workforce; yet, little research examining their impact on workforce diversification exists. The current study assessed the relationship between Title IV-E education and training and workforce diversity and leadership in a state system that is plagued with racial disparities using data from a statewide child welfare survey (n = 679) and existing population-level sources. Findings revealed that while children of color were disproportionately overrepresented in the CPS, professionals of color were disproportionately underrepresented (as compared to the state’s overall population and the population of children served within CPS). Title IV-E education and training programs were associated with both child protection workforce diversity and CPS leadership roles. Implications for recruitment, retention, education, and partnership are discussed.     

Older Youth in Extended Out-of-home Care

The purpose of this study is to examine the permanency experiences of older youth, age 18–21 in out-of-home placements and placement characteristics that influence age of exit from child welfare. Findings suggest a difference between age groups with more 18-year old youth exiting to emancipation than youth who exit at age 21. A higher number of spells in care and a higher number of placement changes during the last spell were associated with exit to emancipation. Additional study findings suggests that youth who leave care before the age of 21 may be more vulnerable than youth who stay through age 21. Implications for practice are discussed.     

The unexpected effect of social status on reproduction: a case study in Joseon Korea from the nineteenth to the twentieth centuries

We examine how parents have made decisions about the number of children they have, given their social status in accordance with residential location (either urban or rural areas) and time (either the pre-modern or modern periods). We use two sets of microdata – Jokbo and Jejeokbu – spanning the early nineteenth to mid-twentieth centuries in Korea. Combining the two data-sets, we use multiple imputation to fill the missing entries of some observations and apply a Poisson regression model on the augmented data. Our empirical results reveal statistically significant evidence that higher socioeconomic status is related to having more children. Additionally, our findings indicate that: (1) all else being constant, among high-status people, rural residents had more children than urban families; (2) for people born between 1800 and 1945, those born closer to the 1940s tended to have fewer children; and (3) during modernization, there was still a significant trend for high-status families to have more children.     

Small State Discourses in the International Political Economy

Abstract

This article supports growing calls to ‘take small states seriously’ in the international political economy but questions prevailing interpretations that ‘smallness’ entails inherent qualities that create unique constraints on, and opportunities for, small states. Instead, we argue that discourses surrounding the ‘inherent vulnerability’ of small states, especially developing and less-developed states, may produce the very outcomes that are attributed to state size itself. By presenting small states as a problem to be solved, vulnerability discourses divert attention away from the existence of unequal power structures that, far from being the natural result of smallness, are in fact contingent and politically contested. The article then explores these themes empirically through discussion of small developing and less-developed states in the Commonwealth and the World Trade Organization (WTO), considering in particular how smallness has variously been articulated in terms of what small states either cannot or will not do.     

The Link Between Public Service Motivation and Volunteering: The Case of South Korean Civil Servants

Despite the consensus on volunteering as a behavioral consequence of public service motivation (PSM), research has not yet empirically examined how various PSM constructs relate to an individual’s volunteering, and the underlying mechanism between PSM and volunteering remains a mystery. This study identifies common motivational grounds between PSM and volunteering and examines how the four PSM types—rational, normative, affective, and self-sacrifice—predict public service employees’ volunteering. The findings from the survey of employees in the Korean National Government suggest a connection between public employees’ volunteering and the rational dimension of PSM, i.e., their desire to influence public policy process.