Demographic analysis of the suicide method by gender and age of the deceased between 2001 and 2010. / Analiza demograficzna metody samobójstwa z uwzglednieniem plci oraz wieku zmarlych w latach 2001-2010.

Aim: AAnalysis of the choice of suicide method by gender and age of the deceased. Material and methods: The study presented here was based on a retrospective analysis of autopsy reports from the years 2001-2010 in the Department of Forensic Medicine of the Jagiellonian University Collegium Medicum in Kraków. The basis of the research work conducted was the collection and extensive analysis of cases of suicide deaths. Subsequently, a preference analysis of the choice of suicide method was conducted, taking into account the age and gender of the deceased. The statistical analysis performed used logistic regression in Excel's XLSTAT as an analysis tool. Results: A total of 2,073 suicide cases were collected from the time frame under discussion. The predominant method of suicide was hanging (1524 cases, 1329 men and 195 women), the second most common method was jumping from the roof or window of a high floor of a building (jumping from heights; 171 cases, 100 men, 71 women). A statistically significant correlation of suicide method with gender was found for: hanging [odds ratio (OR) male (M) vs. female (F) = 3. 4; confidence interval (CI) = 2.7-4.3; p0.001]; drowning [OR: M/F =4.1; CI = 2.6-6.4; p0.001]; jumping from heights [OR: M/F=4.1; CI=2.9-5.7; p0.001] and poisoning [OR: M/F=3.2; CI = 2.1-4.9]. Suicide with the use of firearms occurred exclusively in the case of men (40 cases). The age of the victims correlated with the method of committing suicide by jumping from heights [0R=0.98; CI=0.97-0.99; p0.001] and rail suicide [OR=0.98; CI=0.96-0.99; p0.001]. Conclusions: The study revealed that both age and gender have a significant impact on the choice of suicide method. According to available epidemiological data and the authors' predictions, a predominance of male over female sex was observed in the case of hanging, while jumping from heights was relatively more often chosen by women. The elderly were less likely to choose jumping from heights and rail suicide.

Analysis of cases of suicide by self-immolation in the post-mortem material of the Department of Forensic Medicine in Cracow. / Analiza przypadków samobójstw przez podpalenie w materiale sekcyjnym Zakladu Medycyny Sadowej w Krakowie.

Aim: Analysis of self-immolation cases and distribution of the resulting burns and their degree. Material and methods: The study included 16 cases from the Department of Forensic Medicine, Jagiellonian University Medical College in Cracow from 2000-2022 in which the cause of death was self-immolation. Based on the analysis of photographs and autopsy reports, drawings were made showing the exact distribution and nature of the injuries, moreover, the approximate percentage of body surface area affected was determined as well as the frequency of involvement of specific areas of the body, and the presence of previous diseases and mental disorders including previous suicide attempts. Results: 81% of victims were male. Two age groups were predominant among the cases analyzed, namely, individuals around the age of 20, and those between 50 and 60 years of age. 44% of the deceased had burns exceeding 80% of total body surface. The most frequently involved body areas were the extremities and chest as well as head and neck. Fourth-degree burns were most prevalent on the head and neck, third-degree burns prevailed on the upper and lower extremities, second-degree burns were mostly found on the chest, and first-degree burns - on the lower extremities. There were no cases of fourth-degree burns of the buttocks. 38% of the subjects had a history of substance abuse, 56% suffered from mental illnesses, whereas 31% attempted suicide in the past. Conclusions: The distribution of burns in self-immolation cases is inhomogeneous. The most frequently affected area was the head, neck, chest and extremities, most likely due to victims dousing themselves with a flammable substance from the top of the head through the chest. In all cases, the immediate cause of death was burn disease, regardless of the size of the body surface area affected by the burns. The majority of victims had a history of mental illness, substance abuse or suicide attempts.

About Polish forensic medicine based on archival material described in scientific literature. / O polskiej medycynie sadowej na kanwie materialu archiwalnego opisanego w literaturze naukowej.

The need for medical assessment of murder victims and the establishment of rules for this assessment became the driving force behind the creation of forensic medicine, while the non-medical area of crime assessment, including crime scene examination, became the driving force behind the creation and development of criminalistics. Polish forensic medicine has been developing for over 200 years, and the Kraków Chair of Forensic Medicine is the oldest unit of this type. It is therefore not surprising that the archive which collects protocols of expert and scientific research is quite extensive. This material is a valuable foundation for scientific work including not only numerous publications in national and international journals, but also books. The author of the work selected several books on medical and forensic topics that appeared in recent decades on the Polish publishing market, indicating the value and importance of archival material in the literature of this area of science.

[Russian Medical Academy of Continuing Professional Education - the leading educational institution in the country for the training of forensic medical personnel (for the 90th anniversary from the establishment of the department of forensic medicine)]. / Rossiiskaya meditsinskaya akademiya nepreryvnogo professional'nogo obrazovaniya ­ vedushchee obrazovatel'noe uchrezhdenie strany po podgotovke sudebno-meditsinskikh kadrov (k 90-letiyu so dnya obrazovaniya kafedry sudebnoi meditsiny).

The article presents a detailed analysis of the stages of formation, development and achievements of the forensic medicine department of the Russian Medical Academy of Continuing Professional Education of the Ministry of Health of the Russian Federation, established in 1933 yr. More than 100 resident doctors and 15 PhD students have been trained in the department for 90 years. As a part of additional professional education implementation, more than 800 cycles of training courses for forensic medical and forensic experts and more than 30 cycles of professional retraining for doctors of other specialties have been carried out. More than 160 thous. specialists have been trained at the department since its establishment. Many employees of the department were directly involved in the performance of the most complicated and socially significant forensic medical examinations. The article describes the main achievements and scientific directions of the department's staff activity, directions and prospects of improving the training of forensic medical personnel in the country.

[Conceptual approaches to defining the one-pointedness of forensic expert institutions as a factor determining the effectiveness of their interaction]. / Kontseptual'nye podkhody k opredeleniyu odnoprofil'nosti sudebno-ekspertnykh uchrezhdenii kak faktor, opredelyayushchii effektivnost' ikh vzaimodeistviya.

THE OBJECTIVE OF THE STUDY: Is to identify the effectiveness of cooperation between forensic expert institutions on the basis of approaches to determining their one-pointedness. Legislative and regulatory legal acts regulating forensic expert activity have been studied. Methods of synthesis, analysis and comparison have been used for their processing. The comparison of the carrying out of targeted diversified studies has been conducted. The article substantiates a necessity of uniform approaches to determination of one-pointedness of forensic expert institutions in order to increase the effectiveness of interdepartmental interaction.

[Substantive approach to ensuring infectious safety in forensic medical expert practice]. / Predmetnyi podkhod k obespecheniyu infektsionnoi bezopasnosti v sudebno-meditsinskoi ekspertnoi deyatel'nosti.

The objective of the study is to analyze existing measures and identify problematic aspects of ensuring the organization of infectious safety activity in forensic medical expert institutions, to develop ways of their solution. Documents regulating the functional principles of forensic medical expert institutions in cases of detection or suspicion of infectious pathology have been examined. Specific proposals for the development of a system to ensure infectious safety in the organization of work in the bureau of forensic medical expertise have been formulated.

[Interdepartmental communication training for forensic medical experts]. / Trening mezhvedomstvennoi kommunikatsii vrachei ­ sudebno-meditsinskikh ekspertov.

THE OBJECTIVE OF THE STUDY: Is to identify the main communication problems encountered by forensic medical experts and specialists during the interdepartmental interaction, and to develop proposals to overcome them. A comprehensive approach was used to achieve the aim of the research, including the carrying out of a qualitative focus group interview of forensic medical experts and resident doctors. The main communicative problems have been determined and proposals for their elimination have been formulated, the types of communication trainings on interdepartmental interaction have been identified.

[Educational trajectory of forensic medical expert in the system of continuous medical education]. / Obrazovatel'naya traektoriya sudebno-meditsinskogo eksperta v sisteme nepreryvnogo meditsinskogo obrazovaniya.

The objective of the study is to determine the possibility and the right to choose the directions of self-education and self-development by forensic medical experts within the framework of personal and professional development program in the educational trajectory formation. The materials of special and encyclopaedic literature including pedagogical and sociological sciences, as well as legal framework regulating the processes of continuing medical education have been studied. The choice of educational trajectory of forensic physician depending on personal benchmarks, self-education building and participation in educational activities has been defined.

MEDICO-LEGAL APPLICATIONS OF FRACTURE HEMATOMA: REVIEW.

This review aimed to elucidate the critical role of fracture hematoma in forensic medicine, with a specific focus on its utility in differentiating antemortem from postmortem fractures. The study seeks to provide a comprehensive synthesis of current knowledge on the subject, highlighting the biological and medico-legal implications of fracture hematoma analysis in forensic investigations. A systematic review of literature was conducted, encompassing various scientific databases including PubMed, Scopus, and Web of Science, focusing on studies published from 2000 to 2024. The search employed keywords such as "fracture hematoma," "antemortem fractures," "perimortem fractures" and "postmortem fractures," among others, to explore relevant data. Selected studies were scrutinized based on their relevance, the presence of substantial data on fracture hematoma, and their contribution to forensic analysis. The review underscores the significance of fracture hematoma as an indicator of antemortem injuries, revealing that active blood circulation at the time of injury facilitates hematoma formation. Detailed analyses within the selected studies illustrate the interplay of cellular and molecular dynamics within fracture hematomas, emphasizing the roles of cytokines, particularly IL-6, and cellular constituents in the healing process. Fracture hematoma analysis emerges as a vital forensic tool in establishing the vitality of bone fractures, enhancing the accuracy of forensic assessments. However, the review also acknowledges the challenges posed by individual healing variability and postmortem changes, suggesting a need for further research to refine the interpretative frameworks used in forensic hematoma analysis.

Evaluation of the effect of ozone disinfection on forensic identification of blood, saliva, and semen stains.

Good laboratory practice minimizes the biological hazard posed by potentially infectious casework samples. In certain scenarios, when the casework sample is contaminated with highly contagious pathogens, additional safety procedures such as disinfection might be advised. It was previously proven that ozone gas treatment does not hamper STR analysis, but there is no data on how the disinfection affects other steps of the forensic analysis. In this study, we aimed to assess the interference of ozone disinfection with forensic tests used to identify biological stains. A dilution series of blood, saliva, and semen samples were pipetted onto cotton fabric and let completely dry. Half of the samples were subjected to ozone treatment, while the rest served as controls. All the samples were tested with specific lateral flow immunochromatographic assays and for specific RNA markers with quantitative real-time PCR. Additionally, luminol test was carried out on blood spots, Phadebas® Amylase Test on saliva stains, and semen stains were examined with STK Lab kit and light microscope following Christmas Tree or Hematoxylin-Eosin staining. Ozone treatment had no detrimental effect on the microscopic identification of sperm cells. Undiluted blood samples were detected with luminol and immunoassay, but at higher dilution, the sensitivity of the test decreased after disinfection. The same decrease in sensitivity was observed in the detection of semen stains using STK Lab kit from STK® Sperm Tracker, and in the case of the immunoassay specific for prostate-specific antigen (PSA). Ozone treatment almost completely inhibited the enzymatic activity of amylase. The sensitivity of antibody-based detection of amylase was also greatly reduced. RNA markers showed degradation but remained detectable in blood and semen samples after incubation in the presence of ozone. In saliva, the higher Ct values of the mRNA markers were close to the detection limit, even before ozone treatment.

Bodies of evidence: The 'Excited Delirium Syndrome' and the epistemology of cause-of-death inquiry.

"Excited Delirium Syndrome" (ExDS) is a controversial diagnosis. The supposed syndrome is sometimes considered to be a potential cause of death. However, it has been argued that its sole purpose is to cover up excessive police violence because it is mainly used to explain deaths of individuals in custody. In this paper, we examine the epistemic conditions giving rise to the controversial diagnosis by discussing the relation between causal hypotheses, evidence, and data in forensic medicine. We argue that the practitioners' social context affects causal inquiry through background assumptions that enter inquiry at multiple stages. This analysis serves to better understand the wide usage of the controversial diagnosis of ExDS.

Forensic aspects of condom evidence: Analysis, interpretation, and recent trends.

In recent years, collection and analysis of condom evidence in sexual assault investigations are becoming more common in forensic caseworks. Condom analysis can provide investigative leads or establish potential contact between the suspect and victim in the absence of DNA evidence or supplement biological evidence. Recent forensic literature shows significant advancements in the analysis of condom lubricants, including casework samples. There is an increasing trend in the use of chemometric tools for the comparison and interpretation of the results. This review highlights the advances in common analytical techniques used for the analysis of condom lubricants with a particular focus on the developments occurring in recent years, including chemometric interpretation. The analysis of reference and casework samples (swab samples, samples on skin, clothing and fingermark) are discussed separately. For casework samples, the transfer and persistence of different lubricant formulations are discussed, along with their detection with various analytical approaches. The issues with the interpretation of lubricants are also discussed in another section, with particular emphasis on samples such as personal hygiene products which have similar formulations with sexual lubricants and the interpretation of negative profiles. The current challenges in the field and prospects for future research are also discussed.

Cost-effective 3D documentation device in forensic medicine.

3D documentation in forensics and forensic medicine is being introduced more frequently in various institutes around the world. However, several institutes lack capacity in finances as well as staff to perform 3D documentations regularly. This technical paper aims to present a 3D documentation device that is low cost and easy to use and is a viable entry level solution for forensic medical departments. For this the small single-board computer Raspberry Pi 4 was used in conjunction with its high quality (HQ) camera module to create the 3DLamp - a flexible, low cost and easy to use documentation device. Besides a detailed description of the device this paper also presents four case examples where a 3D documentation was performed and analyses the acquired data and the created 3D models. It was found that the device returns feasible 3D models that appear usable for forensic 3D reconstructions.

Visualization Analysis of Artificial Intelligence Literature in Forensic Research.

OBJECTIVES: To analyze the literature on artificial intelligence in forensic research from 2012 to 2022 in the Web of Science Core Collection Database, to explore research hotspots and developmental trends. METHODS: A total of 736 articles on artificial intelligence in forensic medicine in the Web of Science Core Collection Database from 2012 to 2022 were visualized and analyzed through the literature measuring tool CiteSpace. The authors, institution, country (region), title, journal, keywords, cited references and other information of relevant literatures were analyzed. RESULTS: A total of 736 articles published in 220 journals by 355 authors from 289 institutions in 69 countries (regions) were identified, with the number of articles published showing an increasing trend year by year. Among them, the United States had the highest number of publications and China ranked the second. Academy of Forensic Science had the highest number of publications among the institutions. Forensic Science International, Journal of Forensic Sciences, International Journal of Legal Medicine ranked high in publication and citation frequency. Through the analysis of keywords, it was found that the research hotspots of artificial intelligence in the forensic field mainly focused on the use of artificial intelligence technology for sex and age estimation, cause of death analysis, postmortem interval estimation, individual identification and so on. CONCLUSIONS: It is necessary to pay attention to international and institutional cooperation and to strengthen the cross-disciplinary research. Exploring the combination of advanced artificial intelligence technologies with forensic research will be a hotspot and direction for future research.

Empirical investigation of passive blood drop trajectory and first point of contact on inclined surfaces.

The first point of contact between a spherical blood drop and a surface is related to the angle between the trajectory of the blood drop and the surface being struck. This angle is often referred to as the impact angle which can be estimated by knowing the width and length of the resultant elliptical bloodstain. Most software programs dedicated to area of origin analysis indicate the location of the backtracked bloodstain trajectory to be at the geometric centre or at the tip of the bloodstain ellipse. However, it is unknown how the first point of contact and the blood drop trajectory (here defined as the locus of the centre of mass of the drop as it travels) are related empirically. Thus, this study aims to look at how the initial point of contact and the trajectory at the impact of a blood drop relates to the formed bloodstain ellipse. Two volumes of blood (0.013 ml and 0.071 ml) were dropped from a height of 10 cm and 40 cm onto an inclined surface at 0°, 15°, 30°, 45°, 60°, and 75°. The transition from a spherical blood drop to an elliptically shaped bloodstain was recorded using a high-speed camera for all tests. A total of 72 ellipses were analyzed to determine the location of the first point of contact and trajectory point of the blood drop and how they relate to the formed elliptical bloodstain. A relationship was found between the first point of contact and the bloodstain trajectory which was dependent on the impact angle. However, there were clear deviations from theoretical assumptions due to blood drop oscillations, the effects of gravity, and the natural fluid characteristics of blood. The results of this study may assist bloodstain pattern analysts and software developers by more accurately applying the location of the blood drop trajectory based on empirical data.

Reconstrução facial forense: estudo antropométrico e antropomórfico da orelha / Forensic facial reconstruction: anthropometric and anthropomorphic study of the ear

O reconhecimento por meio da reconstrução facial forense é possível graças às pesquisas sobre as espessuras dos tecidos moles e características dos anexos faciais (olhos, boca, nariz e orelhas) e, a fidelidade dessas características são essenciais no processo do reconhecimento e posterior identificação. Na literatura científica, poucos trabalhos relacionam as orelhas à reconstrução facial forense. Este estudo tem como objetivo analisar as particularidades das orelhas, avaliando formato, tamanho, inclinação e posição, propor uma metodologia de classificação com vistas a uma maior reprodutibilidade que a forma atual existente e estabelecer relação com o biotipo facial. Diante da já referida dificuldade em se avaliar o formato da orelha foi elaborada uma abordagem mais objetiva que se mostrou eficaz quando da comparação entre o Índice Kappa (Cohen) realizado entre a forma atual e a forma proposta (de 0,63 para 0,83 intraexaminador e de 0,19 para 0,61 interexaminador). Foi também observada a predominância da orelha do tipo oval da população estudada. Foram avaliadas 99 fotografias de uma amostra de conveniência obtidas em um Pronto Socorro Odontológico particular da zona sul da cidade de São Paulo, composta por indivíduos de ambos os sexos com idade superior a 18 anos. Quanto às mensurações, o ICC intra e interexaminador obtiveram o mesmo resultado de 0,99. A análise comparativa entre os sexos revelou que o sexo masculino possui orelhas maiores quando comparado ao feminino. O estudo da inclinação da orelha em relação ao crânio mostrou um ângulo médio formado entre seu longo eixo e o Plano de Frankfurt de 73º para 76% dos homens e 69,76% das mulheres. Quanto à relação da orelha com outras estruturas, em 81,6% dos casos, o ponto mais superior da orelha coincide com a sobrancelha.

Sexual assault/rape and serial sexual homicide: Clinical and investigative considerations.

The frequent absence of a documented history of sexual assault/rape in the prior research on serial sexual murderers is curious. In order to address several methodological problems in prior research, a closed-case archival review of a nonrandom national sample of 53 serial sexual homicide cases was conducted which identified 14 offenders with a history of sexual assault/rape for an overall prevalence rate of 26.4%. Of the 14 offenders with a prior known history of sexual assault/rape, 11 (78.6%) sexually penetrated at least one of their homicide victims at the crime scene. Implications for investigation of serial sexual homicide as well as for further understanding of this exceptionally rare crime are presented.

Non-fatal strangulation versus general assault in a clinical forensic medicine cohort: Characteristics of patient, perpetrator and presentation.

BACKGROUND: Interpersonal violence impacts communities, victims, perpetrators, families, and children. This audit of 315 cases of non-sexual assault compares characteristics of general assault to those of non-fatal strangulation (NFS). METHOD: Clinical review of all cases referred to Clinical Forensics Australian Capital Territory (CFACT) by ACT Policing between 2018 and 2022, following allegations of non-sexual assault. Descriptions of the model of care, victim characteristics, alleged perpetrators, and presentations in NFS versus general assault, from forensic medical examination. RESULTS: Patients: Of 315 cases, 170 were victims of NFS, females (153/170, 90%), males 16/170 (9%), and one person with another preferred term. General assault cases comprised 145/315 (46%) presentations, 69/145 (47.6%) patients being female, 76/145 (52.4%) male. A majority of individuals who experienced NFS 113/170 (66%) presented within 12 h of the events, 41% of victims thought they might die during the NFS. Perpetrators: Most NFS perpetrators were male (161/170: 95%), NFS was mostly perpetrated by a partner 104/170 (62%), ex-partner 35/170 (21%), or family member 17/170 (10%). Repeated assaults by the same perpetrator was common 109/170 (64%). Children were present in 48/170 (28%) cases of NFS. DISCUSSION: NFS is gendered violence overwhelmingly affecting women, many experience NFS repeatedly. Later presentation may affect clinical signs, symptoms, and evidence collection. Forensic medicine management of NFS provides an opportunity to effect change, especially in those who thought they may die during the attack. Intervention to prevent trauma in children may be enabled by reporting their presence during an assault. Twenty-four-hour service provision enables both clinical and forensic assessment following NFS. CONCLUSIONS: NFS is gendered, mostly affecting women, occurs in a family violence context, perpetrated by current and/or ex-partners, and often occurs with children present. Clinical forensic medicine doctors can provide care and support, provide referrals, and collect forensic medical evidence to support legal process.