By Jorge Ruiz Reyes, Derek Congram, Renée A. Sirbu, Luciano Floridi

The disappearances of individuals are complex phenomena, spanning different regions and temporal periods. Evolving from different legal, social, and forensic disciplines, existing research has signaled the reasons for and contexts in which people disappear or go missing, as well as the development of investigative tools that assist, in fatal cases, in their identification. However, a different type of applied research, which we have labelled as data-based disappearance analysis (DDA), can offer statistical techniques to support the search for missing persons. In this paper, we review the literature on DDA, paying close attention to the evolution of this methodology and its contextual relevance. We highlight three applications by which DDA may support the search for missing persons: statistical inference, geospatial tools, and machine learning models and artificial intelligence. We demonstrate significant results using these applications, the potential misuses and ethical concerns, and draw lessons from their use. Lastly, we make recommendations to help researchers and practitioners support the search for missing persons.

Unpublished paper 2024

By Peace in Our Cities

From February 25 to 27, Peace in Our Cities (PiOC) members and experts, particularly from the African continent, met in Nairobi, Kenya, for the first Regional Workshop of the PiOC network, organized in partnership with the Life & Peace Institute (LPI). This regionally-focused workshop brought together PiOC member cities and representatives for knowledge exchange and experiential learning on topics such as gender-based violence, youth, data and technology, climate change, and organized criminal violence in the unique context of Africa’s rapid urbanization and social change. The three-day workshop included discussions, training sessions, and site visits to informal settlements of Nairobi, all to explore community-specific violence prevention strategies on the most pressing topics related to urban violence in the region. Cross-cutting insights across workshop elements included: – Violence as a complex phenomenon: Participants emphasized that violence is a multi-pronged and interconnected crisis, involving issues related to governance, gender, inequality, housing, climate change, unemployment, political participation, and more. – Prevention over suppression: Participants agreed that it is not enough to take action to stop violence as it happens, but that governments and other stakeholders need to identify and address the root causes of violence through holistic and whole-ofsociety approaches. – The need to build trust between the community and law enforcement: Participants expressed the importance of creating bridges between the community and the police. Although policing cannot be seen as the sole solution to violence prevention, it is crucial that community members can see law enforcement as reliable, safe, and responsive. – Young people as agents of change: Throughout the discussions, participants remarked that young people feel alienated from political conversations and decision-making, highlighting the need to elevate young people’s voices in discussions related to violence prevention. – Data as a tool for violence prevention: Participants highlighted the importance of using data to understand the violence that affects their communities and design more effective and bettertargeted violence prevention strategies, while expressing their concerns surrounding resource constraints. – Responding to challenges with better institutions and effective governance: Participants remarked on the need to build institutions and governance practices that can answer emerging global challenges such as organized crime, changes in the international funding landscape, and climate-related threats. – Networking and strategic partnerships: different sessions throughout the workshop brought to the fore the importance of coalition building between civil society actors and partnerships with key state actors to bridge the gap between policy and practice and ensure long-term sustainability of efforts to address urban violence. The workshop provided an opportunity for PiOC members to share their approaches and explore critical linkages for continued engagement 

Peace in Our Cities, 2025. 14p.

By Vicky Bungay , Linda Dewar , Mary Schoening , Adrian Guta , Wendy Leiper , Sunny Jiao 

Outreach is an important approach to improve health and social care for women experiencing street involvement (SI) or gender-based violence (GBV). Few studies have examined outreach approaches that incorporate SI and GBV. Drawing on feminist theories and principles of community-based research, we detail an inclusive co-design approach for an outreach intervention considering these interrelated contexts. Women with lived experience, researchers, and service leaders drew on research and experiential knowledge to define outreach engagement principles: tackling GBV, personhood and relational engagement, trauma-informed engagement, and harm reduction engagement. The resulting intervention integrates these principles to enable building and sustaining relationships to facilitate care.

Violence Against Women, 2024 Jun;30(8):1760-1782.

By Janette L. Smith, Jared Brown, David Atefi, Thanjira Jiranantakan, Vanessa Shaw, Christopher Ewers, Lorraine du Toit-Prinsloo, Darren M. Roberts

Novel opioids, including non-medical and non-opium-based opioids such as fentanyl analogues and nitazenes, pose a significant risk of harm due to their high potency. There is little published data on novel opioid detections and harms in Australia, yet they are implicated in multiple deaths. This study describes the detections and harms of novel opioids in New South Wales.

Methods

A retrospective analysis was conducted using four statewide datasets: Coronial Toxicology, the Illicit Drug Analysis Unit, the Prescription, Recreational and Illicit Substance Evaluation Program (PRISE), and the NSW Poisons Information Centre. These datasets were interrogated for available data (cases or substances seized by police) on novel opioid detections between 1 January 2019 and 31 May 2024.

Results

Overall, there were 106 novel opioid detections in 103 cases. PRISE identified 91% of clinical cases, reflecting the program's reach. Fentanyl analogues predominated until 2021, whereas nitazenes predominated from 2022. Most detections were acetylfentanyl (n = 54), followed by isotonitazene detections (n = 13). Positive detections were more frequent in urine compared to blood, supporting testing on both samples. Overall numbers were low, but they were often associated with harm, including deaths.

Discussion and Conclusions

We anticipate that these data underestimate the harms from novel opioids; for example, these drugs are not being tested routinely in laboratory testing of biological samples, and not all police seizures are analysed. A change in the predominant novel opioid was observed during the study period. Enhancing systems for readiness to detect and respond to novel opioids is vital, including resourcing laboratories.

Drug Alcohol Rev. 2025;1–11

By Madison Lloyd, Alice Campbell, Amie Carrington, and Janeen Baxter

Domestic, family and sexual violence (DFSV) is a pervasive and growing issue in Australia. Despite government-led national plans to reduce this violence in Australia, there is evidence that rates are increasing and incidences are becoming more severe. DFSV support agencies offer a range of services to support victim-survivors including targeted support to assist clients to leave violent relationships, access housing, legal and counselling support, as well as offering emotional and social support and support to recognise and define abusive and violent behaviour. 

This paper argues that these services also have the potential to lead to social change at a structural level as suggested by a reverse dominance coalition framework. 

Inequalities persist when they are normalised and celebrated by society. 'Reverse dominance coalitions' make cultural change possible by establishing large collectives of people who speak out in solidarity, develop alliances and collectively establish expectations of equality.

Data from interviews of victim-survivors is used to illustrate the applicability of the reverse dominance coalition framework to DFSV support services. 

The paper finds that the framework offers a means of understanding how support at an individual level to victim-survivors also has broader transformative power to change societal awareness, attitudes and responses. It concludes that DFSV agencies not only assist DFSV victims to recover and heal but also play a leadership role in promoting broader changes at the community, policy and societal level. 

Life Course Centre Working Paper Series No. 2025-14

Sydney: The Australian Research Council Centre of Excellence for Children and Families over the Life Course , 2025. 30p

By Emma Ziersch, Shawn Sowerbutts, Yilma Woldgabreal, Sophie Ransom

The Violence Risk Scale (VRS) is a risk assessment tool designed to assess and predict risk of future offending, inform decisions around therapeutic intervention and measure changes in violence risk as a result of treatment. While the tool has been used extensively both internationally and in Australia, its applicability to our Australian population is unclear.This study investigated the discriminative and predictive validity of the VRS for Australian Aboriginal and non-Indigenous males convicted of violent offending in multiple jurisdictions. The VRS total score had moderate discriminative accuracy for violent reoffending at five-year follow-up. However, Aboriginal males were significantly more likely to be categorised as high risk, and additional discrimination measures revealed variation in performance between Aboriginal and non-Indigenous males. Implications of the findings for correctional practice and recommendations to reduce bias in the assessment of Aboriginal offenders are discussed.

Research Report no. 34.  Canberra: Australian Institute of Criminology. 2025. 66p

By Reena Sarkar, Maaike Moller, and Lyndal Bugeja

This Australian study examined the frequency and clinical signs of neck injury among domestic and family violence (DFV) patients reporting strangulation in Victorian police regions and the forensic service response during a physical and/or sexual assault. The study compared the characteristics between patients with/without clinical signs of neck injury and between physical and sexual assault where a forensic practitioner performed a medical examination. Of 522 eligible patients of physical and/or sexual assault, 84 (16 %) self-reported strangulation. Amongst the 84 patients, 63 had complete forensic examination data. Of the 63 examinations, 38 were for physical assaults and 25 for sexual assaults. Observable neck injury was reported in 75 %. About half of the patients undergoing forensic examinations displayed neck injuries specific to non-fatal strangulation. Danger-to-life assessment, substance abuse, comorbidities, and previous domestic violence were comprehensively reported. This study suggests that observable neck injuries are associated with self-reported strangulation. The findings will inform policy, and response services, about the features of nonfatal strangulation in DFV in Victoria.

Forensic Science International Volume 374, September 2025, 112533  

By  The Australian Criminal Intelligence Commission

Report 24 of the National Wastewater Drug Monitoring Program is based on data collected in August (capital city and regional sites) and October 2024 (capital city sites only). Sixty-one wastewater treatment plants participated nationwide, covering approximately 57% of the population. This provides a comprehensive picture of Australia’s illicit drug markets and drug consumption habits for 12 substances. Report 24 also provides data for the 8th year of the program, allowing for comparisons with previous years.

Findings

The Australian Criminal Intelligence Commission has commissioned The University of Queensland, and through it the University of South Australia, to undertake the data collection and analysis that underpins the report.This latest report reveals that 22.2 tonnes of methylamphetamine, cocaine, heroin and MDMA was consumed between August 2023 and August 2024. This is a 34% increase from the previous year, driven by record high consumption of all 4 drugs. 

Longitudinal figures

Longitudinal figures are available for each state and territory and broken down by drug type. These figures offer a guide to trends over the period the respective drugs have been monitored by the wastewater program.

Canberra: Australian Criminal Intelligence Commission, 2025. 92p.

By Ian Ayres, Joseph Bankman, & Daniel J. Hemel

The negative moral emotions of guilt and shame impose real social costs but also create opportunities for policymakers to engender compliance with legal rules in a cost-effective manner. We present a unified model of guilt and shame that demonstrates how legal policymakers can harness negative moral emotions to increase social welfare. The prospect of guilt and shame can deter individuals from violating moral norms and legal rules, thereby substituting for the expense of state enforcement. But when legal rules and law enforcement fail to induce total compliance, guilt and shame experienced by noncompliers can increase the law’s social costs. We identify specific circumstances in which rescinding a legal rule will improve social welfare because eliminating the rule reduces the moral costs of noncompliance with the law’s command. We also identify other instances in which moral costs strengthen the case for enacting legal rules and investing additional resources in enforcement because deterrence reduces the negative emotions experienced by noncompliers. We end by exploring the implications of our framework for legal policy across “guilt cultures” and “shame cultures,” for the debate over shaming sanctions, and for other moral emotions such as resentment and virtue.

University of Chicago Law Review (forthcoming), Yale Law & Economics Research Paper, Stanford Law and Economics Olin Working Paper No. 601, 

By Lark Mulligan

The police murdered Alton Sterling on camera. They also murdered Eric Garner, Laquan McDonald, and many others; the videos of their deaths garnered millions of views. Information about some horrors of the criminal legal system is spreading widely, yet White mainstream media outlets frequently dismiss, erase, or demonize Black, Indegenous, and People of Color (“BIPOC”) communities who protest and organize to demand justice through the abolition of or radical changes to the policing and prison systems. In response to these racist atrocities and within the broader context of criminal legal reform, activists and academics frequently craft ethical arguments such as: “Solitary confinement is immoral because it inflicts psychological and physical torture” or “Incarceration is unethical because prisons are inherently violent places.” Many ethical arguments center on the racist injustices and harm that affronts human dignity and agency caused by prisons and police. Others critique the racist and retributive ethics of “law and order” rhetoric. Each argument is well-supported by accessible data that can be found in numerous studies, books, articles, and media. However, people often erroneously dismiss these data-driven, logical, ethical reasonings as factually inaccurate, or many respond with a deeply racist ethical-legal rationale, for example: “While there may be abuses in prisons, some people need to be put in solitary or prison and deserve it because [insert classical legal rationales for punishment: deterrence, retribution, rehabilitation, etc.].” Ethical and legal arguments are severely limited, however, when they lack an epistemological interrogation into the power structures that determine what qualifies as “knowledge” within the ethical-social conversation. This article demonstrates why anti-prison activists’ ethical arguments generally do not receive the due credibility and weight they deserve unless they pair critical liberatory epistemic practices with material, institutional, and social transformations. Abolitionists claiming to fight the confines of carceral epistemologies cannot merely sit back and point out the already-existing logical contradictions in the criminal legal system—it is not enough.

The Scholar: St. Mary's Law Review on Race and Social Justice, Vol. 27 [2025], No. 2, Art. 1

By Brian Taehyuk Keum,  Lianne Wong & Jung Yun Na

Social media is a major vehicle that can facilitate people’s exposure to gun violence and polarized attitudes that favor gun ownership, yet little research has examined how such exposure affects people’s mental health in today’s digital era. To advance empirical research in this area, the current study developed the Gun Violence on Social Media Scale (GVSMS) using best practices in measure development. Items were developed via a literature review, a survey of social media platforms, and an expert review. Exploratory (N = 277) and confirmatory (N = 241) factor analyses yielded a 2-factor structure with the following subscales: (a) Gun Violence Content (4 items); mediated exposure to gun violence through social media content, and (b) Pro-Gun Attitudes (3 items); exposure to polarized pro-gun attitudes on social media. The initial psychometric properties of the GVSMS were adequate. Internal consistency estimates were adequate, and construct validity was established with positive associations with other gun-related measures, negative mental health outcomes (depressive, anxiety and trauma symptoms), and non-significant associations with impression management. Implications for research practice are discussed.

Journal of Aggression, Maltreatment & Trauma

By Hannah S. Laqueur & Colette Smirniotis

Using firearm transaction and crime gun recovery records from California (2010–2021), we employ machine learning to identify dealers who sold the largest number and highest fraction of guns recovered in crimes within 1 year of sale. This short “time-to-crime” (TTC) is a well-established indicator of potential illegal activity by dealers or traffickers. We developed two primary prediction models: the first classifies dealer-years in the top 5% of 1-year crime gun sales volume (prediction model 1), the second identifies dealer-years in the top 5% based on the fraction of sales recovered within a year (prediction model 2). Both models demonstrated strong discriminative performance, with areas under the receiver operating curve (AUCs) of 0.95 and 0.86, respectively, and areas under the precision-recall curve (AUC–PRs) of 0.72 and 0.43. By comparison, a random classifier would be expected to achieve an AUC of 0.50 and an AUC-PR of 0.05. Prediction model 1 was particularly effective at identifying the highest risk dealers: Those with predictions exceeding 0.90 consistently ranked in the top 5% across multiple years, averaging 33 1-year crime gun sales annually. The machine learning models generally outperformed simpler regression and rule-based approaches, underscoring the value of data-adaptive methods for prediction. Key predictors included prior-year crime gun sales, the average age of purchasers, the proportion of “cheap” handgun sales, and the local gun robbery and assault rate.

Firearms dealers may engage in behaviors that facilitate the diversion of guns to criminal markets. Combining detailed transaction and recovery records with machine learning could help efficiently identify high-risk retailers for targeted enforcement to disrupt the flow of firearms to gun offenders. Future research is needed to determine whether a high number of short TTC sales as compared to a high fraction is a more reliable predictor of law evasion.

Criminology & Public Policy Volume 24, Issue 3 Aug 2025 Pages307-497

By Jingyuan Yu, · Aliya Andrich, · Max Schindle

This exploratory study investigates the potential gender differences in research priorities, driven by factors such as established sexual stigma and traditional gender norms surrounding pornography. Using temporal and thematic analyses, we identify and examine research topics of 6,145 pornography studies published between 2001 and 2024. Our findings suggest that the lead author's gender may influence topic selection, with women exploring topics that have historically been underrepresented or overlooked. Furthermore, female-led publications have engaged with internet and web-related research earlier and more prominently. Additionally, our analyses outline the evolution of male- and female-led publication patterns in the feld, highlighting a trend toward more balanced representation. This study aims to serve as a foundational basis for future research, encouraging more thorough investigations into gender disparities and their underlying causes within this domain. We also highlight the importance of longitudinal research to uncover potential gender disparities over time.  

Archives of Sexual Behavior (2025) 54:1995–2003 

By Siobhán Healy‑Cullen,   Kris Taylor,   Tracy Morison

Purpose of Review - In this article, we dig more deeply into the assumptions underpinning common-sense understandings about youth “exposure” to pornography and the ostensible “effects” of this exposure, specifically “pornography addiction”. We trace the emergence of the notion of “pornography addiction”, highlighting how cultural conditions have allowed for its realisation as a socially recognisable and intelligible narrative. Recent Findings:  Media effects research on the issue of youth “exposure” to pornography is not conclusive, nor is pornography addiction officially recognised as a diagnosable disorder. Moreover, an emerging body of multidisciplinary qualitative research, which, importantly, includes the perspectives and experiences of young people themselves, raises questions about some of the assumptions and conclusions of effects-focused research. Summary:  Despite inconclusive and contrasting findings, the social narrative of pornography addiction persists both within and beyond academe. We make sense of this persistence in relation to the broader problematization of youth sexuality, which includes unease and moral objection to young people viewing pornography. It is important to recognise the broader socio-cultural systems supporting the cultural narrative of pornography addiction, and the social functions that this narrative serves, that is, the need for adult intervention into the sexual lives of youth.  

  Current Addiction Reports (2024) 11:265–274

By Isangelo Senna, Fabio Iglesias, Lucas Heiki Matsunaga

Abstract Despite decades of research on Crime Prevention Through Environmental Design (CPTED), the specifc impact of its dimensions on fear of crime (FoC) remains under-examined. This study investigates these efects by analyzing responses from 460 participants who evaluated photographs and completed the Situational Fear of Crime Scale for Public Spaces (SFS-Scale). The fndings reveal that defciencies in natural surveillance, followed by a lack of territoriality, are linked to heightened FoC. Moreover, natural surveillance emerged as a more signifcant predictor of FoC compared to territoriality. Additionally, police ofcers and military personnel reported lower levels of FoC than the general public. The study highlights the importance of understanding how CPTED dimensions shape public perceptions of safety. It also ofers practical insights for the development of targeted public security policies. These fndings suggest that CPTED principles can play a crucial role in reducing fear of crime and enhancing public safety in urban settings.

Crime Prevention and Community Safety (2025) 27:1–17 

By Eric Halford

Crime linkage is a systematic way of assessing behavioural or physical characteristics of crimes and considering the likelihood they are linked to the same ofender. This study builds on research in this area by replicating existing studies with a new type of burglar known as optimal foragers, who are ofenders whose target selection is conducted in a similar fashion to foraging animals. Using crimes identifed by police analysts as being committed by foragers this study examines their crime scene behaviour to assess the level of predictive accuracy for linking crimes based on their ofending characteristics. Results support previous studies on randomly selected burglary ofence data by identifying inter-crime distance as the highest linking indicator, followed by target selection, entry behaviour, property stolen and ofender crime scene behaviour. Results discuss distinctions between this study and previous research fndings, outlining the potential that foraging domestic burglary ofenders display distinct behaviours to other forms of ofender (random/marauder/commuter). 
Journal of Police and Criminal Psychology (2023) 38:127–140 

By Iris van Sintemaartensdijk & Jean-Louis van Gelder & Jan-Willem van Prooijen & Claire Nee & Marco Otte & Paul van Lange 

Objectives This study investigates the deterrent effects of incremental levels of guardianship on residential burglary and assesses how burglars differ from non-burglars in terms of their perceptions of opportunities for burglary. Methods In a virtual reality experiment, 181 incarcerated burglars and 172 nonburglars (university students) were tasked to appraise a virtual neighbourhood in search of a burglary target. During the appraisal process, participants were exposed to different levels of guardianship, ranging from the mere presence of a guardian to an intervening guardian. Results The presence of a guardian deterred both burglars and non-burglars alike, with only negligible incremental effects for levels of guardianship. For burglars, guardianship increased the perceived likelihood of being caught and the perceived level of social cohesion, whereas it decreased neighbourhood attractiveness. The burglars differed from the non-burglars in terms of how they appraised the virtual neighbourhood, clearly reflecting differences in expertise between both groups. Conclusions With respect to residential burglary, the results suggest that guardians—in line with the original notion of guardianship developed by Cohen and Felson (American Sociological Review, 44(4), 588–608, 1979)—serve as a deterrent simply by being present.

Journal of Experimental Criminology (2021) 17:657–676

By Claire Nee, Jean-Louis van Gelder, Marco Otte, Zarah Vernham, and Amy Meenaghan

In this article, we describe a quasi-experiment in which experienced incarcerated burglars (n = 56), other offenders (n = 50), and nonoffenders (n = 55) undertook a mock burglary within a virtual neighborhood. We draw from the cognitive psychology literature on expertise and apply it to offending behavior, demonstrating synergy with rational choice perspectives, yet extending them in several respects. Our principal goal was to carry out the first robust test of expertise in offenders by having these groups undertake a burglary in a fully fledged reenactment of a crime in a virtual environment. Our findings indicate that the virtual environment successfully reinstated the context of the crime showing clear differences in the decision making of burglars compared with other groups in ways commensurate with expertise in other behavioral domains. Specifically, burglars scoped the neighborhood more thoroughly, spent more time in the high-value areas of the crime scene while traveling less distance there, and targeted different goods from the comparison groups. The level of detail in the data generated sheds new light on the cognitive processes and actions of burglars and how they “learn on the job.” Implications for criminal decision-making perspectives and psychological theories of expertise are discussed.

Criminology Volume 57, Issue 3Aug 2019 Pages373-574

By Robyn Lunt & Matthew Talbot

Research has highlighted gaps in the publics ‘awareness of burglar behaviour and their perceptions of vulnerability, perhaps indicating a need for further prevention training. No such research exists examining students’ awareness, but is vital given students’ relatively high levels of burglary victimisation. To provide this research, students were asked to complete a mock burglary in a simulated environment, with burglary awareness inferred based on their performance relative to previous experienced burglars. Further context was added by qualitatively analysing participants’ verbalisations during the task. Performance was also compared between frst and third year undergraduates to further examine diferences in awareness across student populations. No signifcant diferences were found between the behaviour of frst and third years. Nevertheless, both groups showed an overall limited understanding of burglary behaviour through their performance and verbalisations. Results demonstrate that raising awareness of victimisation and burglary behaviour is integral to improve the safety of University students.  

Crime Prevention and Community Safety (2025) 27:18–34

By Rose Tingate , Rachael Fullam , and Margaret Nixon

Research has largely neglected the intersection of gender and disabil-ity in reintegration, resulting in a poor understanding of the reintegra-tion needs of women with cognitive disabilities. This paper useda systematic review of research published between 1995 and 2024 todevelop a profile of formerly incarcerated women with cognitive dis-abilities and their needs on reentry. Twelve studies met inclusioncriteria, and a content analysis revealed themes of disadvantage, dis-connection from family and support networks, mental illness, andunmet criminogenic needs. The limited research on the reintegrationneeds of formerly incarcerated women with cognitive disabilities high-lights significant challenges, including service gaps and specificvulnerabilities.

Victims & Offenders, 1–24.