Gunshot residue in Chicago police vehicles and facilities: an empirical study

Suspects in shooting investigations in Chicago are routinely transported in department vehicles and detained in department facilities prior to gunshot residue (GSR) evidence collection. The GSR test results are used to associate the suspect with primary exposure to GSR. The potential for these vehicles and facilities being sources of secondary GSR contamination needed to be determined. A total of 201 samples were collected from randomly selected vehicles and detention facilities. The sampling collected trace materials from surfaces that suspects' hands may contact during the arrest process. These samples were examined for the presence of GSR particles using scanning electron microscopy. Upon completion of the automated analysis, those particles that met an initial GSR screening criterion were relocated and reanalyzed. The locations where GSR particles were recovered allowed us to make recommendations to the Chicago Police Department with regard to transporting and detaining these suspects. The low number of GSR particles recovered suggests that the potential for secondary contamination, although present, is relatively low.     

Recovery of Environmental Human DNA by Insects*,†

Abstract: We tested the hypotheses that foraging insects can acquire human DNA from the environment and that insect‐delivered human DNA is of sufficient quantity and quality to permit standard forensic analyses. Houseflies, German cockroaches, and camel crickets were exposed to dusty surfaces and then assayed for human mitochondrial and nuclear loci by conventional and qPCR, and multiplex STR amplification. Over two experiments, 100% of insect groups and 94% of dust controls tested positive for human DNA. Of 177 individuals, 33–67% tested positive and 13 yielded quantifiable human DNA (mean = 0.022 ± 0.006 ng; mean dust control = 2.448 ± 0.960 ng); four had at least one positive allele call for one or more locus; eight others showed multiple peaks at some loci. Results imply that application to routine forensic casework is limited given current detection methodology yet demonstrate the potential use of insects as environmental samplers for human DNA.     

The organizational structure of international drug smuggling

While most group offending is not well organized, it is generally assumed that high levels of organization can be found in group offending that generates revenue, such as white-collar crime, drug sales, and smuggling drugs or humans. The organizational structure of international drug smuggling has typically been viewed as highly rational and formally structured. Employing interviews with thirty-four federal prisoners convicted of smuggling large volumes of cocaine into the United States, this study explored the organizational structure of high level international drug smuggling. The subjects described a general lack of formal structure and depicted the drug smuggling operations as composed of isolated work groups without formal connections among each other. These findings bring into question the idea that these groups are rationally organized around pursuing efficiency and support recent research that suggests network security or minimizing risk are key organizing principles of drug trading organizations.     

Exploring the Sequential Lineup Advantage Using WITNESS

Advocates claim that the sequential lineup is an improvement over simultaneous lineup procedures, but no formal (quantitatively specified) explanation exists for why it is better. The computational model WITNESS (Clark, Appl Cogn Psychol 17:629–654, 2003) was used to develop theoretical explanations for the sequential lineup advantage. In its current form, WITNESS produced a sequential advantage only by pairing conservative sequential choosing with liberal simultaneous choosing. However, this combination failed to approximate four extant experiments that exhibited large sequential advantages. Two of these experiments became the focus of our efforts because the data were uncontaminated by likely suspect position effects. Decision-based and memory-based modifications to WITNESS approximated the data and produced a sequential advantage. The next step is to evaluate the proposed explanations and modify public policy recommendations accordingly.     

Validity and Determinants of Clinicians’ Return to Work Judgments for Individuals Following Whiplash Injury

Rehabilitation clinicians routinely make judgments about the capacity of individuals to return to work following whiplash injury, which can have serious implications for individuals’ continued access to salary indemnity benefits. The present study examined the validity and determinants of these judgments. During a standardized rehabilitation intervention, data regarding demographic factors, crash characteristics, pain severity, range of motion, pain-related psychological functioning, as well as change in the latter three factors over the course of treatment were collected for 104 whiplash-injured individuals (73 women, 31 men). Upon completion of the intervention, clinicians rated the number of hours each individual was capable of working per day. Follow-up data regarding the actual number of hours worked were collected 1 year later. Hierarchical regression analyses revealed that clinicians’ judgments added significant unique variance to the return to work prediction beyond other predictive factors, and that clinicians were particularly influenced by patients’ pain severity and treatment-related change in pain severity in making these judgments. Although clinicians were significantly able to predict return to work, the limited variance accounted for by their judgments (12%) warrants caution in the use of these judgments in decisions related to access to services or indemnity. Factors predictive of clinician judgment and actual return to work are compared, and recommendations to enhance the utility of these judgments are made.     

Latina Fortitude in the Face of Disadvantage: Exploring the Conditioning Effects of Ethnic Identity and Gendered Ethnic Identity on Latina Offending

Recent literature has investigated if socialization and identity protect against the criminogenic effects of strainful experiences for African Americans. Here Latinas are brought to the forefront. This study not only investigates if a positive ethnic identity increases fortitude against strainful events, but if its effects are further influenced by gender socialization. Results reveal ethnic identity increases resilience against the criminogenic effects of vicarious victimization and acculturation and gendered ethnic identity protects against direct victimization. This study reinforces the need for further investigation into cultural explanations for within group differences in criminogenic outcomes.     

Asymmetry as context: The rollercoaster of South Africa–US relations post 1994

The United States pictured a bright future with a strategic country when the new South African government took power in 1994. They envisioned a strong partnership in political, economic and security realms. The bilateral relationship did not turn out to be as easy as many in America might have envisioned. Despite notable camaraderie during the Mandela–Clinton administrations, there was a considerable downward swing in US–South African relations during the Bush administration. This situation has since appeared to reverse itself during the current Obama and Zuma administrations. This paper, through the lens of ‘asymmetry theory’ as developed by Brantly Womack, seeks to shed light on how a rollercoaster relationship such as this can go through such fluctuations and not end in extreme tension.     

The Strategic Use of Public Information in Anti-Corruption Agencies: Evidence from the Asia-Pacific Region

In this era of anti-corruption policy-making, the Internet provides a potentially critical strategic resource for anti-corruption agencies (ACAs) aiming to promote organizational and policy learning. Realizing its potential is a creative challenge that will tap different types of capacities in the agency and its environment. We present a framework for understanding the information-related functions that underpin policy and organizational learning for ACAs, develop a rating criteria to assess strategic information usage, and then assess five ACAs in the Asia Pacific region on one aspect of strategic information usage: dissemination via the Internet. Agencies differ markedly in the degree to which their use of public information dissemination via the Internet is “strategic” in nature, pointing towards a new arena for capacity building and strategy development.     

Framing and perceptions of stalking: the influence of conduct severity and the perpetrator–target relationship

Research has demonstrated that the way in which questions are presented (i.e. framed) has the capacity to influence responses to subsequent questions. In the context of stalking, perception research has often been framed in terms of whether or not particular behaviours constitute stalking. The current research investigates whether the framing of the opening question (question frame), conduct severity and the perpetrator–target relationship influence perceptions of stalking. Two studies employed experimental 3×3 independent factorial designs: one to examine question frame and conduct severity, the other to examine question frame and the perpetrator–target relationship. Participants in both studies (total N=449) were presented with vignettes and asked to answer six questions relating to the behaviour described. Question frame was found to impact on the classification of behaviour, with a greater proportion of participants indicating that the behaviour represented harassment or stalking rather than an illegal act. Consistent with previous research, conduct severity and the perpetrator–target relationship influenced perceptions of stalking. However, there was no evidence to suggest that the framing of the opening question influenced these perceptions. The implications of these findings for previous perception research are discussed.