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The use of acid to obscure human remains is a tactic frequently associated with criminal activity, yet research on its effects on human dentition remains inconsistent. Dental tissues, among the body's most durable components, play a vital role in forensic identification. However, existing studies on acid dissolution of dentition often lack standardized methods, resulting in findings that are difficult to reproduce or generalize. This study addresses these gaps by examining the effects of hydrochloric acid (HCl) on permanent maxillary molars under controlled conditions, using a replicable methodology that incorporates experimental controls and evaluates the impact of handling techniques such as removal, rinsing, and drying. Five permanent maxillary molar samples were submerged in HCl (37 %) under varied handling conditions. Findings reveal that undisturbed samples dissolved more slowly than those subjected to periodic removal and rinsing, which accelerated dissolution rates by over 100 %. This highlights the significant influence of handling techniques on experimental outcomes. The study also identifies inconsistent reporting and the absence of standardized protocols in prior research as critical barriers to reproducibility. By providing a clear and replicable framework, this study advances understanding of the dissolution process and emphasizes the importance of methodological rigor in forensic science. These findings have broader implications for improving the reliability of forensic evidence and ensuring its applicability in criminal investigations. Addressing these issues is essential for enhancing public trust in forensic methods and strengthening their role in the justice system. •Clear, replicable research is critical to maintaining credibility in forensic applications.•Variability in dentition studies reveals critical gaps in forensic science's methodological rigor.•Introducing controls in forensic research can significantly improve the accuracy of findings.•It found that handling methods, like periodic rinsing, accelerate tooth dissolution compared to undisturbed conditions.•This study explores how hydrochloric acid affects human molars using a controlled, replicable approach.

Legal medicine owes him the visibility and respect that was not there before his professional activity in Portugal”, said his wife, Maria José Pinto da Costa, Professor of Legal Medicine and Forensic Toxicology at the University of Porto's Biomedical Sciences Institute Abel Salazar (ICBAS). Pinto da Costa also served as a Professor of Legal Medicine at the private Portucalense Infante D Henrique University in Porto from 1986 until his death and he taught in public and private universities across the country on subjects ranging from forensic psychology to criminology and medical law. Pinto da Costa also pushed to strengthen rules for reporting intimate partner violence and to create facilities where survivors could find shelter, while also recruiting psychologists and lawyers who could offer them free support.

In 2022, a group of eminent forensic scientists published The Sydney Declaration - Revisiting the essence of forensic science through its fundamental principles in Forensic Science International. The Sydney Declaration was delivered to revisit “the essence of forensic science, its purpose, and fundamental principles”. At its heart, revisiting these foundational principles is hoped to “benefit forensic science as a whole to be more relevant, effective and reliable”. But can these principles be translated operationally by a forensic services provider to achieve the benefits prescribed? How do we make the leap from a theoretical concept and begin to put it into practice to bring about the real and meaningful change that the declaration hopes to achieve? In this paper we will attempt to discuss how the Australian Federal Police (AFP) Forensics Command has reflected on the Sydney Declaration by relating reforms developed and implemented to our operating model with some selected principles. We hope to show that while the Sydney Declaration could be perceived as academic and disconnected from operations, it has the potential to impact and positively influence reforms and changes for forensic science providers. The AFP Forensics Command experience shows the operational relevance of The Sydney Declaration.

When non-alcohol drugs are detected in blood samples from apprehended drivers in Norway, individualised expert opinions are required to evaluate degree of impairment. For alcohol, legislative limits have been in use since 1936. To harmonize the current practice for driving under the influence of alcohol and non-alcohol drugs, a judicial reform with legislative limits for non-alcohol drugs has been suggested. Impairment limits, representing drug concentrations in blood likely to be accompanied by a degree of impairment comparable to a blood alcohol concentration (BAC) of 0.02%, were proposed for 20 psychotropic drugs, including the most prevalent benzodiazepines, cannabis, GHB, hallucinogens and opioids. Limits for graded sanctions, representing drug concentrations in blood likely to induce impairment comparable to BACs of 0.05% and 0.12%, were defined for 13 of the 20 substances. The suggested limits were based on assessments of impairment after single doses of the drugs in naïve individuals. The proposed limits will not apply to individuals with valid prescriptions for medicinal drugs, where the present system with individualised expert evaluations will be maintained. Norway is the first country planning to implement legislative limits for non-alcohol drugs corresponding to impairment seen at increasing BACs. The background and justification for the suggested limits are presented herein.

Recent DNA exonerations have shed light on the problem that people sometimes confess to crimes they did not commit. Drawing on police practices, laws concerning the admissibility of confession evidence, core principles of psychology, and forensic studies involving multiple methodologies, this White Paper summarizes what is known about police-induced confessions. In this review, we identify suspect characteristics (e.g., adolescence; intellectual disability; mental illness; and certain personality traits), interrogation tactics (e.g., excessive interrogation time; presentations of false evidence; and minimization), and the phenomenology of innocence (e.g., the tendency to waive Miranda rights) that influence confessions as well as their effects on judges and juries. This article concludes with a strong recommendation for the mandatory electronic recording of interrogations and considers other possibilities for the reform of interrogation practices and the protection of vulnerable suspect populations.

Psychiatric hospitals often represent the main and sometimes only treatment option available for people with mental disorders.1 This treatment model contradicts the balanced-care model, which suggests that a comprehensive mental health system needs to include and integrate outpatient community care, acute in-patient care in general hospitals and community-based residential care.2 In Italy, the transition from a hospital-based system of care to a model of community mental health care started in 1978 with a reform that led to the gradual closing of psychiatric hospitals. According to the Organisation for Economic Co-operation and Development (OECD) database, suicide rates have remained stable in Italy: in 1978 there were 7.1 suicides per 100 000 population, while in 2012 there were 6.3 suicides per 100 000 population.5 Third, decreasing the total number of psychiatric beds does not lead to increased compulsory admissions. According to the few available data, in 1980 there were 1424 psychiatric patients placed in forensic psychiatric hospitals; in 1987 there were 977 and in 2012 there were 1264.7 In 2016, after the phasing out of forensic psychiatric hospitals, there were 541 individuals placed in new residential facilities providing intensive mental health care to socially dangerous individuals with mental disorders.

Background Nepal recorded 5754 suicides in 2018–19 - a high number for a relatively small country. Over 24% of these suicides were by poisoning, most by ingestion of highly concentrated agricultural pesticides. Nepal has actively regulated pesticides to reduce their health impacts since 2001. We aimed to analyse Nepal’s history of pesticide regulation, pesticides responsible for poisonings, and relate them to national suicide rates. Methods Information on pesticide regulation was collected from the Plant Quarantine and Pesticide Management Centre of the Ministry of Agriculture and Livestock Development. National data on suicides from 1980 to 2019 were obtained from the National Statistical Bureau and Nepal Police. Data on the pesticides responsible for self-poisoning and pesticide suicides over time were obtained from a systematic literature review. Results As of June 2020, 171 pesticides were registered for use in Nepal, of which one was extremely hazardous (WHO Class Ia), one other highly hazardous (WHO Class Ib), and 71 moderately hazardous (WHO Class II). Twenty-four pesticides have been banned since 2001, with eight (including five WHO Class I compounds) banned in 2019. Although the suicide rate has increased more than twelve-fold since 1980, particularly for hanging (15-fold increase from 1980 to 2018), fatal pesticide self-poisoning has increased by 13-fold. Methyl-parathion is reported to be the key pesticide responsible for pesticide self-poisoning in Nepal, despite being banned in 2006. Conclusion The full effect of the recent pesticide policy reform in Nepal remains to be seen. Our analysis shows a continuing increase in suicide numbers, despite bans of the most important pesticide in 2006. This may indicate smuggling across the border and the use of the brand name (Metacid) for pesticides in general making it difficult to identify the responsible pesticide. More information is required from forensic toxicology labs that identify the individual compounds found. The effect of recent bans of common suicide pesticides needs to be monitored over the coming years. Evidence from other Asian countries suggests that HHPs bans will lead to a marked reduction in suicides, as well as fewer cases of occupational poisoning.

Background The risk and recovery paradigms are the dominant frameworks informing forensic mental health services and have been the focus of increasing research interest. Despite this, there are significant gaps in our understanding of the nature of mental health recovery in forensic settings (i.e., ‘secure recovery’), and specifically, the key elements of recovery as perceived by forensic patients and their treatment providers. Importantly, we know little about how patients perceive the forensic mental health system, to what extent they see it as fair and legitimate, and how these perceptions impact upon treatment engagement, risk for adversity, and progress in recovery. Methods In this prospective, mixed-methods study, we investigate patient perceptions of procedural justice and coercion within the context of the forensic mental health system in Ontario, Canada (final N  = 120 forensic patients and their primary care providers). We elicit patient self-assessments of risk and progress in recovery, and assess the degree of concordance with clinician-rated estimates of these constructs. Both qualitative and quantitative methods are used to assess the degree to which patient perceptions of coercion, fairness and legitimacy impact upon their level of treatment engagement, risk for adversity and progress in recovery. A prospective, two-year follow-up will investigate the impact of patient and clinician perspectives on outcomes in the domains of forensic hospital readmission, criminal reoffending, and rate of progress through the forensic system. Discussion Results from this mixed-methods study will yield a rich and detailed account of patient perceptions of the forensic mental health system, and specifically whether perceptions of procedural fairness, justice and legitimacy, as well as perceived coercion, systematically influence patients’ risk for adversity, their ability to progress in their recovery, and ultimately, advance through the forensic system towards successful community living. Findings will provide conceptual clarity to the key elements of secure recovery, and illuminate areas of similarity and divergence with respect to how patients and clinicians assess risk and recovery needs. In doing so, knowledge from this study will provide a deep understanding of factors that promote patient safety and recovery, and provide a foundation for optimizing the forensic mental health system to improve patient outcomes.

With the development of highly sensitive bioanalytical techniques, the volume of samples necessary for accurate analysis has reduced. Microsampling, the process of obtaining small amounts of blood, has thus gained popularity as it offers minimal‐invasiveness, reduced logistical costs and biohazard risks while simultaneously showing increased sample stability and a potential for the decentralization of the approach and at‐home self‐sampling. Although the benefits of microsampling have been recognised, its adoption in clinical practice has been slow. Several microsampling technologies and devices are currently available and employed in research studies for various biomedical applications. This review provides an overview of the state‐of‐the‐art in microsampling technology with a focus on the latest developments and advancements in the field of microsampling. Research published in the year 2022, including studies (i) developing strategies for the quantitation of analytes in microsamples and (ii) bridging and comparing the interchangeability between matrices and choice of technology for a given application, is reviewed to assess the advantages, challenges and limitations of the current state of microsampling. Successful implementation of microsampling in routine clinical care requires continued efforts for standardization and harmonization. Microsampling has been shown to facilitate data‐rich studies and a patient‐centric approach to healthcare and is foreseen to play a central role in the future digital revolution of healthcare through continuous monitoring to improve the quality of life.

Examines the theoretical and practical outlook of forensic physicians in Imperial Russia, from the 18th to the early 20th centuries, arguing that the interaction between state and these professionals shaped processes of reform in contemporary Russia. It demonstrates the ways in which the professional evolution of forensic psychiatry in Russia took a different turn from Western models, and how the process of professionalization in late imperial Russia became associated with liberal legal reform and led to the transformation of the autocratic state system.