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Overkilling in the Forensic Medicine field 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 data 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. First part of the research concerned the facts regarding the injuries sustained and the victim's characteristics. Conclusions of the statistical analysis allowed to characterize overkilling as a type of homicide where the number of injuries (sharp or blunt) is several times higher than the number of fatal injuries. Sharp force injuries predominate, and are often localized on the torso, neck and limbs, while blunt force injuries are localized mostly on the head. There is no significant dominance between the sexes of the victims, mostly they are in their 40-50's. Victims with reduced abilities to resist predominated (mostly women), which is correlated with the position of their body (lying or sitting) at the begging of the incident. Also overkilling victims more often suffer from defensive injuries and post mortem trauma., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)

Aim of the study: To determine the circumstances which can be useful for offenders profiling in homicide cases with victim's body dismemberment. Material and methods: Study of all homicide cases with victim's corpse dismemberment examined in Krakow Department of Forensic Medicine over the last 50 years. Results: Within the past 50 years, a total number of 30 cases of homicides with dismembered bodies were examined in Krakow. 22 cases represent defensive mutilations performed by offender, 3 cases can be classified as offensive muti-lations and 3 cases represent aggressive mutilations - decapitation as a method of committing homicide. In this period the only 1 case of necrophilic mutilations was examined, when the body was dismembered without murder. In most cases the background of homicide was the family conflict, 6 was cause of mental illness of perpetrator and in 3 was sexual motive. Only in 3 cases (from 25 when the offender was known) perpetrator kill a stranger. In the other the offender belonged to the family or friends of the victim. In all cases where the perpetrator was determined, homicide and dismemberment was performed in his place of residence. The findings of the Police investigations indicate that in most cases homicides were not planned, occurred under the influence of emotion, only two have been previously scheduled. Conclusions: Homicides with corpses dismemberment usually are committed by offenders who is in close relationship with victim (family or friend). Dismemberment is almost always performed in the same place as murder - home of perpetrator. This type of homicide usually is not planned.

In this study, we present 23 cases of dismembered bodies examined by the Cracow Department of Forensic Medicine in 1968-2005 period. Presented material includes 17 instances of defensive mutilation, three instances of offensive mutilation and two cases when dismemberment (decapitation) was a direct cause of death. One case is hard to classified, the perpetrator dissected free skin from the all torso. Analysis of all presented cases and other publications concentrating on the problem of dismemberment gave us the possibility to perform some conclusions. Apart from rare cases of necrophilia, the victim of dismemberment is always a victim of homicide. Homicides ending with corpse dismemberment are most commonly committed by a person close to, or at least acquainted with the victim and they are performed at the site of homicide, generally in the place inhabited by the victim, the perpetrator or shared by both. Such instances are generally not planned by the perpetrator and rarely serial in character.