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This study aims to use a novel data set of 636 murderers sentenced to death in California to investigate homicide offenses that are committed but not prosecuted or officially solved, a concept known as the dark figure of crime.

Uaing appellate records from the Supreme Court of California, which contain extensive information about the offender’s background, criminal offense history and mental health diagnoses, it was revealed that one-third of the offenders in the sample have additional homicide offenses for which they likely bear responsibility, but were not prosecuted.

Most of these involve one or two additional homicides, though a wide range was observed spanning 0 to 93 additional victims. Those with a dark figure of murder and unsolved homicides had substantially more prior arrests, convictions and prison incarcerations and were higher in psychopathy, sexual sadism, homicidal ideation and gang involvement than offenders without a dark figure. Psychopathy and homicidal ideation were the most robust predictors of both the presence and magnitude of a dark figure of murder and unsolved homicides, whereas sexual sadism was inconsistently associated.

A disproportionate amount of the unsolved murders in the USA are likely perpetrated by the most pathological types of offenders, those with extensive antisocial careers and severe externalizing psychopathology.

The 2020 murder of George Floyd resulted in challenges to policing in the United States of America, but little is known about how police chiefs perceive them. At the same time, chiefs of police wield great influence over public perceptions of crime and disorder, the state of their profession, the laws and policies that govern the conduct of police officers and municipal public safety budgets. It is therefore critical to understand how police perceive the changes to their profession post-Floyd.

This study surveyed a randomly selected national sample of 276 municipal chiefs of police. Items probed resignations, recruitment, efforts to defund departments, community support, officer morale, suspects’ likelihood of obeying lawful orders and career risks that could inhibit proactive police work. It examined associations between perceptions and Census Bureau region, length of tenure as chief, size of police department, population served and the urban or rural designation of the jurisdiction.

Chiefs overwhelmingly reported recruiting qualified candidates had become much harder, and the present risks of proactive police work encourage inaction. Chiefs of agencies in the Northeast perceived more challenges than those in the South. Respondents with more years of experience were less likely to perceive the current situation as dire. Approximately 13.5% reported an attempt to defund their department, 56.8% of which yielded some success. Our study suggests an increase in the number and scope of challenges perceived by chiefs of police. Results vary by region and police chief years of experience.

This study provides researchers and practitioners with the perspectives of chiefs about the post-Floyd era that influence their decisions, policies and initiatives.

Drawing on dual process theory as the overarching framework, this study investigates how different types of incidental vocabulary learning yield different performance, repetition, and continuance intention outcomes and uncovers the underlying mechanism.

We identify four popular types of incidental learning: traditional, a murder mystery game, noneducational live streaming, and VTuber. We propose that the underlying mechanism is the mediating role of perceived novelty as heuristic processing, and effort and performance expectancy as systematic processing. We conduct a between-subject experiment with four groups for the four types of incidental learning. From a total of 220 subjects, 55 valid responses were collected from each group. Analysis of variance and a partial least squares structural equation model are employed to examine the differences and mechanism.

The results show that noneducational live streaming performs significantly best for all three outcomes. The mechanism test demonstrates that perceived novelty and performance expectancy play significantly positive mediating roles, whereas effort expectancy has a null mediating effect.

The research provides both theoretical and practical implications.

Since the passage of the Double Jeopardy (Scotland) Act 2011, mirroring changes in other jurisdictions, a person who has been acquitted in Scotland can, under certain circumstances, be retried for that offence. Jurors could have knowledge of the previous acquittal verdict (whether not guilty or not proven) through media sources, potentially biasing the new jury in their decision-making. The purpose of this study is to detemine the influence of knowing a trial is a retrial, on conviction rates.

The current study invited 253 participants to give a verdict to a mock murder trial after either receiving pretrial information about the original verdict or no information about the case being a retrial.

Significantly more acquittal verdicts were given when the participants were told that it was a retrial, compared to the control condition, irrespective of whether the prior verdict was not guilty or not proven.

Findings are discussed in light of jurors’ knowledge of legal concepts and acquittal verdicts and the increasing exposure of the general Scottish public to the not-proven verdict due to increased media coverage.

The reviews of cold case homicides are infrequently referenced within either procedural guides or scholarly outputs. However, boundaries for the review are imperative to ascertain the most productive use of resources, aligned with the case’s chance of eventual resolution. The purpose of the study is to identify the boundaries established by police forces within England and Wales for their reviews of cold cases. Due to the lack of guidance, forces have created their own methods which may result in ineffective review processes and strategies. Therefore, this study sought to elucidate the boundaries of the review process through 13 semi-structured interviews with cold case detectives and a seven-month observation period (analysed simultaneously using an inductive Thematic Analysis), the following boundaries were identified before the review commences: the Terms of Reference (which provide a framework for the review based on live homicide review criteria), the identification of the review type (either a full or thematic review) and justification of the case’s prioritisation. This study provides initial evidence that there is an interconnectedness of procedures underpinning the reviews of cold cases, with the Terms of Reference dictating the type of review to be conducted, which is subsequently influenced by the case’s prioritisation. This study provides an important insight into the boundaries of reviews, and recognises the challenges for their implementation, attributed primarily to available resources and the number of cases that a force is responsible for. Important recommendations are proposed for the ongoing practice of cold case reviews to provide areas of evaluation and improved practice.

The reviews of cold case homicides are infrequently referenced within either procedural guides or scholarly outputs. However, boundaries for the review are imperative to ascertain the most productive use of resources, aligned with the case’s chance of eventual resolution. The purpose of the study is to identify the boundaries established by police forces within England and Wales for their reviews of cold cases. Due to the lack of guidance, forces have created their own methods which may result in ineffective review processes and strategies. Therefore, this study sought to elucidate the boundaries of the review process through 13 semi-structured interviews with cold case detectives and a seven-month observation period (analysed simultaneously using an inductive Thematic Analysis), the following boundaries were identified before the review commences: the Terms of Reference (which provide a framework for the review based on live homicide review criteria), the identification of the review type (either a full or thematic review) and justification of the case’s prioritisation. This study provides initial evidence that there is an interconnectedness of procedures underpinning the reviews of cold cases, with the Terms of Reference dictating the type of review to be conducted, which is subsequently influenced by the case’s prioritisation. This study provides an important insight into the boundaries of reviews, and recognises the challenges for their implementation, attributed primarily to available resources and the number of cases that a force is responsible for. Important recommendations are proposed for the ongoing practice of cold case reviews to provide areas of evaluation and improved practice.

The reviews of cold case homicides are infrequently referenced within either procedural guides or scholarly outputs. However, boundaries for the review are imperative to ascertain the most productive use of resources, aligned with the case’s chance of eventual resolution. The purpose of the study is to identify the boundaries established by police forces within England and Wales for their reviews of cold cases. Due to the lack of guidance, forces have created their own methods which may result in ineffective review processes and strategies. Therefore, this study sought to elucidate the boundaries of the review process through 13 semi-structured interviews with cold case detectives and a seven-month observation period (analysed simultaneously using an inductive Thematic Analysis), the following boundaries were identified before the review commences: the Terms of Reference (which provide a framework for the review based on live homicide review criteria), the identification of the review type (either a full or thematic review) and justification of the case’s prioritisation. This study provides initial evidence that there is an interconnectedness of procedures underpinning the reviews of cold cases, with the Terms of Reference dictating the type of review to be conducted, which is subsequently influenced by the case’s prioritisation. This study provides an important insight into the boundaries of reviews, and recognises the challenges for their implementation, attributed primarily to available resources and the number of cases that a force is responsible for. Important recommendations are proposed for the ongoing practice of cold case reviews to provide areas of evaluation and improved practice.

The reviews of cold case homicides are infrequently referenced within either procedural guides or scholarly outputs. However, boundaries for the review are imperative to ascertain the most productive use of resources, aligned with the case’s chance of eventual resolution. The purpose of the study is to identify the boundaries established by police forces within England and Wales for their reviews of cold cases. Due to the lack of guidance, forces have created their own methods which may result in ineffective review processes and strategies. Therefore, this study sought to elucidate the boundaries of the review process through 13 semi-structured interviews with cold case detectives and a seven-month observation period (analysed simultaneously using an inductive Thematic Analysis), the following boundaries were identified before the review commences: the Terms of Reference (which provide a framework for the review based on live homicide review criteria), the identification of the review type (either a full or thematic review) and justification of the case’s prioritisation. This study provides initial evidence that there is an interconnectedness of procedures underpinning the reviews of cold cases, with the Terms of Reference dictating the type of review to be conducted, which is subsequently influenced by the case’s prioritisation. This study provides an important insight into the boundaries of reviews, and recognises the challenges for their implementation, attributed primarily to available resources and the number of cases that a force is responsible for. Important recommendations are proposed for the ongoing practice of cold case reviews to provide areas of evaluation and improved practice.

The purpose of this study is to explore the review mechanisms’ efficacy from the perspective of cold case reviewers. Live homicide review mechanisms at the 7- and 28-day stage of an inquiry seek to prevent the case becoming cold (or unsolved) by ensuring lines of inquiry have been suitably identified and progressed. There is also a requirement to ensure the investigation was not swayed by faulty decision-making or cognitive biases. However, the use of the review processes in preventing unsolved cases is unclear, and not subject to much academic discussion.

This exploratory study explores the review functions through the lens of cold case detectives, currently reviewing unsolved cases to identify progression opportunities. The study uses data from a seven-month, non-participatory observation period with a two-force collaborative cold case unit and 13 semi-structured interviews with cold case review officers. The observations and interviews were simultaneously analysed adhering to an inductive approach to Thematic Analysis.

The results show procedural guides (e.g. the Major Crime Investigation Manual) are important quality assurance mechanisms for review officers, helping ensure the appropriate and necessary lines of inquiry have been pursued. However, they were keen to emphasise the importance of intuition in progressing cases but felt continuously hindered by a lack of resources and large numbers of applicable cases. To the best of the authors’ knowledge this study is the first exploration of cold case detective’s experiences of the live review processes and how they may pose challenges in case progression for cognitive errors and biases. While the study has identified some challenges facing review officers in nine police forces across the UK, wider examination of policies, practices and mechanisms should be explored to develop the current procedural guidance (e.g. NPCC, 2021).

To the best of the authors’ knowledge this exploratory study is the first exploration of cold case detective’s experiences of the live review processes and how they may pose challenges in case progression for cognitive errors and biases. While the study has identified some challenges facing review officers in nine police forces across the UK, wider examination of policies, practices and mechanisms should be explored to develop the current procedural guidance (e.g. NPCC, 2021).

The authors describe an original unit plan that draws from local and national concerns for truthful history education about the history of racial violence in the United States. The unit plan contextualizes one impetus for truth and reconciliation in a community with a history of anti-Black violence.

The participants partnered with the Equal Justice Initiative to pilot the unit in their district’s new African American History course. The unit drew on historical research and cultural memory to situate local history within a broader context of racism and violence.

The teachers identified eight goals for the unit so that students could understand racialized violence, acknowledge racism as the lived experience of many of their students, and participate in a collaborative learning environment with productive discussions. Speaking from their own experiences with racism, and creating opportunities for students to do the same, the teachers aided the community in voicing long-silenced memories.

Besides bridging some of the gaps between local, regional, and national histories, more research is needed to further examine historical trauma and its implications for both the past and present, in order to amplify and humanize experiences of racism. Additional research is a critical step in developing more thoughtful, empathic and holistic discussions of history and racism at the local level.

In the wake of the recent past, the authors have learned that teaching about the history of racial violence can be enhanced and empowered by reference to relevant current events. The resurgence of racially charged language and violence over the past few years makes this goal more urgent than ever. This unit gives practical guidance to teachers who face this challenge.

The sociopolitical reality of historical trauma and racism must be confronted, and proximity to key events is important in conveying the urgency of racial violence and the need for history education that addresses it. Teachers are making difficult decisions about their options for teaching about race, and they are understandably concerned about any perceived missteps. Nonetheless, inclusive, truthful history education is an appropriate and essential response to narratives of exclusion and silence as the authors help students to develop deliberative skills concerning difficult topics such as racial violence. Teachers and students, together, can do the crucial work of remembering.

The stripping away of narrative agency, identity and history can cover up stories about the stripping away of life and dignity. In the unit plan, the authors recognize truth and reconciliation—especially in the education of people who have relatively little exposure to topics of race and racism—as elemental to a restorative stance against racism.

In the absence of new funding dedicated to cold case investigation, innovation is required.

The number of unresolved homicides in the USA has surpassed a quarter million, and the figure grows by thousands every year. Homicides that do not yield a quick arrest are time and labor intensive. This creates a staffing and resource dilemma for law enforcement administrators, as allocating time for older cases comes at the expense of investigating current ones, and vice versa.

Universities offer the enthusiastic labor of college students to “defrost” cold cases. One such partnership has been in place for nearly three years in an unusual collaboration between a state police agency and a regional state university. Small groups of students systematically organize, review and present case files. They create investigative recommendations and prioritize cases by solvability. Investigators can then select a case that may be relatively close to an arrest, access the case details very quickly and have the investigative recommendations as a place to begin a renewed investigation. Additionally, cases that are appropriate for new forensic testing or new forensic tools are identified and advanced.

Partnerships such the one described here are rare but lucrative. We recommend new collaborations like ours to reduce the number of unresolved homicide cases.

This case study delves into the evolving landscape of equity, inclusion and diversity (EID) initiatives within the health-care sector, with a specific focus on the “EverybodyIN” program implemented at the Mayo Clinic, a large academic Medical Center in the USA. Against the backdrop of growing awareness catalyzed by societal events, this case study aims to explore the multifaceted aspects of workplace conversations aimed at addressing racial disparities and fostering a more inclusive environment.

The case study relies on the application of critical race theory and a social constructionist approach to investigate the impact of a subset of voluntary educational conversations that were centered on the Black/African-American experience, on staff members’ racial understanding and allyship within the health-care organization. Through thematic analysis of postevent surveys and participant sentiments, three overarching themes emerged: appreciation, education and validation.

Through thematic analysis of postevent surveys and participant sentiments, three overarching themes emerged: appreciation, education and validation. The findings underscore the pivotal role of leadership buy-in, evidence-based practices, health equity and an ongoing commitment to “the journey” in successful EID efforts. The results highlight the significance of integrating EID into health-care organizations as a continuous endeavor that aligns with organizational values and mission.

The findings underscore the pivotal role that theory and practice play through a newly described framework that includes leadership buy-in, evidence-based practices, health equity and an ongoing commitment to “the journey” for successful EID efforts.

The results highlight the significance of integrating EID into health-care organizations as a continuous endeavor that aligns with organizational values and mission.

By fostering a safe and informed space for dialogue, organizations can empower staff to engage authentically and acquire cultural competence that may contribute to advancing health equity.

The language of participative theatre can be considered immersive in the treatment of its dialectics where participants engage fully with their dichotomies and value systems through physical and psychological exploratory processes as they commit themselves to transformation.

The use of drama as an intervention for challenging recurring mental models of oppressive narratives is used extensively in experiential psychotherapy and as a socio-psychological integrative tool. This experiential methodology allows for an organic development and expression of themes and motifs by encouraging a participant to develop a deeper awareness of how he/she interprets their identity and that of the community in which they function.

This paper aims to review the implications of applying drama-based interventions as positive psychotherapeutic devices to facilitate self-reflection and active-constructive responding in enabling a rendering of positive patterns of thought and purposeful movement towards emotional and physical well-being.

Research on the principles of positive psychology suggests that positive emotions lead to therapeutic change. Nurturing positive emotions which are immanent in spirituality, creativity and optimistic perseverance through autonomy and self-regulation enable individual potential to come to meaningful fruition.

The paper conceptualizes psychodrama as a framing technique in enabling reflexive action in identity transformation and well-being.