Surgical Sutures as a Means of Identifying Human Remains*

Abstract: The Food and Drug Administration does not require surgical sutures to be tracked by manufacturer, physician, or patient; thereby, surgical sutures have been of little use to forensic practitioners who are tasked with establishing a positive identification with biological evidence. This study demonstrates the investigative process used to pinpoint suture manufacturers by presenting a case where surgical sutures were a distinctive characteristic that aided in the positive identification of skeletal remains. The suture’s manufacturer, construction material and structure, size, and medical use was determined by contacting a local surgical suture and orthopedic implant manufacturer and utilizing publicly available manufacturer websites, which provide catalogs and specific product details. This research was one of many lines of evidence used to establish the positive identification of a 47‐year‐old male.     

Investigating perceptions of race and ethnic diversity among prospective police officers

Many have suggested police diversity will improve police-community relations, but research testing this hypothesis is inconclusive. We investigated perceptions of police race, ethnicity, and diversity in a heterogeneous sample of prospective police officers. Data are drawn from interviews with 42 criminal justice college students in the Southwestern United States, of which 15 were Hispanic, and who each wanted to become a police officer. Participants supported diversity in policing, and collectively expressed a belief that race plays a central role in policing today. Furthermore, participants expressed support for the ideals of both passive and active representative bureaucracy. Hispanics in the sample in particular anticipated they would positively affect police relations in Hispanic neighborhoods and encourage immigrants to cooperate with police.     

Y STR haplotype data for New Zealand population groups using the Y-Plex 6 kit

Allele and haplotype frequencies were obtained for the six Y STR loci DYS19, DYS389II, DYS390, DYS391, DYS393 and DYS385 in the New Zealand population. Ninety-two different haplotypes were found. The Maori population had a specific haplotype that occurred in over 30% of the population. The Pacific Island population exhibited a triple repeat at the DYS385 locus in 26% of individuals, something rarely observed in other population groups.     

Freedom of Information,Right to Access Information,Open Data: Who is at the Table?

Many national governments have adopted the idea of the ‘right to access information’ (RTI) or ‘freedom of information’ (FOI) as an essential element of the rights of citizens to freedom of opinion and expression, human rights, trust in public discourse and transparent, accountable and open government. Over 100 countries worldwide have introduced access to information legislation: 50+ in Europe; a dozen in Africa; 20 in the Americas and Caribbean; more than 15 in Asia and the Pacific; and two in the Middle East (Banisar, 2014 Banisar, D. (2014) National Right to Information Laws, Regulations and Bills 2014 Map, http://dx.doi.org/10.2139/ssrn.1857498, accessed 15 May 2015. [Google Scholar]). This article will provide an overview of access to information legislation and focus on the UK Freedom of Information Act 2000 as a case example. It will discuss the impact of the UK FOI Act on public authorities, with particular attention to records management implications, drawing on research undertaken by University College London. In the final section, it will reflect on relationships between access to information and open government data. If governments are moving to more openness, what implications might this have for those charged with implementing FOI and RTI policies, including for records management professionals?     

Spaced cognitive interviewing: Facilitating therapeutic and forensic narration of traumatic memories

Abstract

The evolution of the cognitive interview (CI) is reviewed from the original package of memory-enhancing techniques through to the revised (or enhanced) CI, and the cognitive approach now taught to police officers in UK. Many officers are reluctant to apply CI, particularly to traumatised victims. The traumatising effects of crime are examined in terms of immediate response and the potential for an acute stress response and post-traumatic stress disorder, with subsequent re-experiencing of dissociated traumatic memories in the form of intrusive, unwanted imagery. Traumatic memories are described, particularly their accuracy, detail and persistence. The therapeutic potential of prolonged experience of distress while narrating the content of traumatic imagery is explained. An approach to maximising the disclosure of dissociated detail - spaced cognitive interviewing (SCI) - is described and case material presented illustrating its forensic and therapeutic application. The practice and practical implications of SCI are summarised.     

Results from experimental trials testing participant responses to White, Hispanic and Black suspects in high-fidelity deadly force judgment and decision-making simulations

Objective

Advance the methodological techniques used to examine the influence of suspect race and ethnicity on participant decisions to shoot in an experimental setting.

Methods

After developing and testing a novel set of 60 realistic, high definition video deadly force scenarios based on 30 years of official data on officer-involved shootings in the United States, three separate experiments were conducted testing police (n?=?36), civilian (n=?72) and military (n?=?6) responses (n?=?1,812) to the scenarios in high-fidelity computerized training simulators. Participants’ responses to White, Black and Hispanic suspects in potentially deadly situations were analyzed using a multi-level mixed methods strategy. Key response variables were reaction time to shoot and shooting errors.

Results

In all three experiments using a more externally valid research method than previous studies, we found that participants took longer to shoot Black suspects than White or Hispanic suspects. In addition, where errors were made, participants across experiments were more likely to shoot unarmed White suspects than unarmed Black or Hispanic suspects, and were more likely to fail to shoot armed Black suspects than armed White or Hispanic suspects. In sum, this research found that participants displayed significant bias favoring Black suspects in their decisions to shoot.

Conclusions

The results of these three experiments challenge the results of less robust experimental designs and shed additional light on the broad issue of the role that status characteristics, such as race and ethnicity, play in the criminal justice system. Future research should explore the generalizability of these findings, determine whether bias favoring Black suspects is a consequence of administrative measures (e.g., education, training, policies, and laws), and identify the cognitive processes that underlie this phenomenon.     

Validating a novel tool for coding body worn camera footage of police-community member interactions

Objectives

This study aimed to validate a tool for coding police body-worn camera (BWC) footage to measure the dynamics of police–community encounters, including items related to community members, officer performance, and situational outcomes.

Methods

Over 1000 BWC videos were scored by five coders who participated in an iterative interrater reliability exercise to improve the agreement. Krippendorf's alphas and a multilevel simultaneous component analysis were used to assess interrater reliability and the component structure of ratings, respectively. Bootstrapped and multilevel exploratory and confirmatory factor analyses were conducted to ascertain any underlying dimensions supporting officer and community member behavior, and cluster analyses were performed to examine whether interactions could be grouped into coherent categories.

Results

The lower bound of unweighted means of bootstrapped alphas ranged from 0.67 to 0.96 depending upon item type, and 21.60% of the total variance in raters was between-subjects. Factor analyses revealed only a single factor (“defensiveness”) underlying four items related to hostility directed toward officers by community members. Cluster analyses described seven categories that were highly overlapping but conceptually plausible with cluster silhouette means ranging from −0.06 to 0.13.

Conclusions

We validated a collection of interval-level coding metrics on a random sample of over 1000 interactions between police officers and community members recorded through BWCs. In doing so, we provide a roadmap for researchers and practitioners to effectively measure the dynamics of police–community encounters and officer performance within those encounters and a framework for addressing the validity and reliability of items in future studies involving the measurement of BWC footage.