Criminal mutilation in Sweden from 1991 to 2017

Postmortem tissue alterations induced by corrosive substances - a scoping review

INTRODUCTION

The method of dissolving a body to conceal crimes, a practice dating back to ancient times, has recently captured the interest of scientists and the film industry. Real-life cases inspired by media portrayals underscore the importance of understanding this process, which aims to prevent identification or locate the body. Historical and contemporary examples highlight the use of substances like caustic potash and various acids. Although scientific studies on this topic are limited, this scoping review explores the use of corrosive substances for concealing crimes by dissolving remains and aims to provide an overview of the current global extension of this phenomenon, addressing a gap in scholarly literature.

METHODS

A systematic literature search was performed according to PRISMA-ScR guidelines. The search strategy included PubMed, Google Scholar, gray literature, and general Google searches for cases in international media. Articles were eligible if they discussed the effects of corrosive substances on tissue with the intent to alter or destroy, excluding those focused on living individuals or for non-forensic purposes. Results were categorized into academic and gray literature, further divided by species studied.

RESULTS

A total of 280 results were found in PubMed and 966 in Google Scholar. No reviews were found. Additional searches led to 79 records, with 37 excluded due to duplication or updates. Ultimately, 83 studies were included in the review, documenting key elements such as study purpose, sample details, substances used, and findings. The effects of various corrosive agents were revealed, including alkaline substances such as lime, potassium hydroxide, and sodium hydroxide, as well as acids like hydrochloric acid, sulfuric acid, nitric acid, and aqua regia.

CONCLUSIONS

Diagnosing tissue alterations caused by corrosive substances requires a multidisciplinary approach and detailed analysis. Final outcomes depend on concentration, exposure time and conditions. Techniques like microscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDX/EDS), micro-computed tomography (micro-CT) and X-ray fluorescence (XRF) provide critical detailed results. Recreating the crime through experiments may be necessary for investigations, shedding light on the methods employed by perpetrators, reflecting the complexity of these out-of-the-ordinary cases. Further studies are crucial for interpreting these effects.

Concealed Homicides-A Postmortem Study and Review

ABSTRACT

A study was undertaken at Forensic Science SA, Adelaide, South Australia, of all cases of homicide (January 2003-December 2022) where the victims' bodies had been concealed. Three hundred twenty-six homicides were identified, which included 27 cases where bodies had been deliberately hidden (8%) (age range, 2-82 years; ave, 34.9 years; M:F = 1.5:1). Deaths were due to blunt force trauma (n = 11), sharp force trauma (n = 4), asphyxia (n = 4), gunshot wound (n = 2), and a combination of drowning and asphyxia (n = 1). In 5 cases, the cause of death was not determinable. The methods of concealment (which were sometimes overlapping) included the following: dumping at a hidden/isolated location (n = 8), burial (n = 7), dismembering (n = 3), incinerating (n = 3), hiding in a wheeled garbage bin (n = 2), disposing in garbage resulting in the remains being located at waste disposal facilities (n = 2), hiding in a shed (n = 1), under a concrete floor (n = 1), in a suitcase (n = 1), in a river (n = 1), in a mine shaft (n = 1), and in a septic tank (n = 1). Although it has been asserted that concealed homicides are rarely encountered in forensic practice, the current study has demonstrated that the bodies in at least 8% of victims of homicide in South Australia have undergone some form of concealment.

"Scalping" in the context of criminal dismemberment and mutilation-a case report and review of the literature

We report on a case of criminal dismemberment and attempted scalping of a homicide victim with a "Mohawk" haircut. Case findings are presented. A review of the literature was performed for scalping in its historical and cultural context and particularly in criminal dismemberment and mutilation: Historically, scalping was prevalent in many ancient cultures around the world, where scalps were taken as trophies or "proof of kill", much like shrunken heads, trophy skulls, and other artefacts. Scalping was particularly widespread in Northern America in the context of tribal warfare, both before and after colonization. The iconic "Mohawk" haircut is closely linked with scalping, as it was meant to taunt the enemy. In the modern forensic context, scalping constitutes a form of criminal mutilation. However, cases of criminal dismemberment and mutilation are rare in forensic casework. Our literature review revealed a low number of scalping in criminal dismemberment and mutilation cases. The documentation was overall poor. Positioning scalping within the classification of criminal mutilation and dismemberment was difficult. In literature, even though case numbers were small, the majority of "textbook scalping" cases were German. The presented case, to our best knowledge, is the first modern-day photo-documented case of (attempted) scalping, even more so of a person wearing a "Mohawk".

Overkilling: A specific type of homicide - Constructing the definition: Perpetrator, weapon and circumstances

Overkilling in the Forensic Medicine is known as a specific type of homicide where the number of inflicted injuries greatly surpasses the number of fatal ones. Conducted research aimed to create a unified definition of the phenomenon and its classification criteria by analysing a vast majority of variables concerning its various characteristics. From the population of homicide victims autopsied in the authors' research facility a number of 167 cases were chosen consisting of both overkilling and other homicides. 70 cases were thoroughly analysed based on the completed court files, autopsy protocols and photographs. Second part of the research concerned the facts regarding the perpetrator, used weapon and the circumstances of the act. Conclusions of the conducted analysis allowed to add further characteristics to the overkilling definition: the perpetrators were almost exclusively men, around 35 of age, not related to the victim but might have been in a close relationship with them, often a conflicted one. They did not threaten the victim before the incident. Mostly perpetrators were not intoxicated, and they tried to cover up the homicide in various ways. Perpetrators of overkilling were in most cases mentally disturbed (and thus stated insane), had different levels of intelligence but also a low level of planning before the act - rarely taking actions as preparing the weapon in advance, choosing the scene or luring in the victim.

Development and implementation of forensic anthropology in Swedish forensic practice

This paper presents the ongoing development of forensic anthropology in Sweden. We discuss the background of the discipline, its application, as well as its current and potential development in Swedish forensic practice. Collaboration with osteoarchaeologists in skeletal forensic cases has a long tradition in Sweden. Analyses of skeletal remains are performed ad-hoc, in contrast to analyses of fleshed human remains. While several law enforcement employees are educated in forensic anthropology and/or osteoarchaeology, they are not employed in these fields, and regional variations are evident. Internationally, forensic anthropology has become an autonomous forensic discipline over the past decades, requiring skills beyond mere skeletal analysis. To keep on a par with international standards, it may be time to revisit the concept of forensic anthropology in Sweden. Despite the limited presence of supporting organisational structures and systems, forensic anthropological and hard-tissue-reliant physico-chemical analyses have proven valuable in Swedish forensic practice, especially in cases of personal identification, trauma analysis and search efforts. We argue that Sweden could benefit from making qualified forensic anthropology expertise available in all law enforcement regions, starting to implement and promote forensic anthropology in routine forensic casework and formalising the role of forensic anthropology practitioners.

Sexual femicide, non-sexual femicide and rape: Where do the differences lie? A continuum in a pattern of violence against women

Violence against women is a growing health problem, especially when perpetrated in intimate relationships. Despite increasing attention, there is little comparative evidence on the different types of violence involved and there is a paucity of research on sexual femicides. This study examines cases of violence against women in northern Italy, focusing on sexual and non-sexual femicides and comparing them with rape that does not result in femicides. The sample included 500 women who were victims of sexual and non-sexual femicides, and of rape. Results show sexual femicides mostly involved unknown victims or women who were prostitutes. Sexual femicidal offenders used improper weapons to kill their victims, acted in secluded locations, and fled the crime scene; their crime was more likely the result of predatory intentions, with antisociality and sexual deviance being the most significant factors related to this type of femicide. The criminal and violent pattern that characterized sexual femicides in this study shared significant similarities with the pattern of violence involved in rape. Rape victims were in fact mostly unknown, or involved in a brief relationship with their killer. When the victim was known it was more likely that the abuse occurred at home and in front of the woman's children. Rapists were often under the effect of alcohol or drugs. Non-sexual femicides mainly involved known victims, and they were more often committed in the context of domestic disputes. It was not seldom that the long relationship between the victim and perpetrator was likely to be characterized by contentiousness, suggesting that the woman was often victim of an oppressive climate of emotional tension and domination. Morbid jealousy contributed to aggravating the tone of a controlling relationship. Non-sexual femicides bore more similarities to cases of rape within the pattern of intimate partner violence. Findings are discussed in terms of their implications for prevention and intervention.