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Cases of death resulting from placing a plastic bag on the victim's head are very rare. In the last 20 years, in the Department of Forensic Medicine in Krakow, there were fourteen such cases examined. Their number is, however, noticeably growing, amounting to as many as few cases per year. Death resulting from this mechanism is difficult from the diagnostic point of view and often the only indicative evidence is a presence of a plastic bag on the head.

Fatal carbon monoxide poisoning is relatively often encountered in medico-legal practice. Although we usually deal with events of an accidental nature, cases of suicidal character are also quite common, both in Poland and in other European countries. The source of a poisonous gas that is used by a suicide to take his life are usually exhaust fumes from cars and home gas water-heaters that are released in closed spaces. In the present report, the authors present an atypical case--the only such instance in the history of the Krakow Department--where a high carbon monoxide concentration level was achieved by burning briquetted coal in a typical portable barbecue grill. A 65-year old male lit the grill in a room locked from inside, where he had previously sealed all cracks and vents; he left a written message by the entrance where he warned his flatmates about the presence of gas. The investigation determined that the predominant underlying reason of his committing suicide were health problems. As it follows from the analysis of literature on the subject, despite extensively available materials, such a suicide method is exceptionally rare in the European or American culture, where isolated cases only are presented. On the other hand, the authors emphasize the fact that within the last score of years, using barbecue grills in suicidal poisoning has become exceedingly common in the Far East countries. The present report points to certain historical and cultural determinants that may affect such a distinct geographical polarization of the discussed method being used in some Asian countries and refers to a widely discussed by specialists significant role of mass media in popularization of such a suicide method.

The easily available "legal highs", which are products containing psychoactive substances, such as cathinones, piperazines and synthetic cannabinoids, are abused by adolescents in Poland and in the world as alternatives to classic drugs, such as amphetamines or marijuana. The majority of these potentially dangerous substances are still legal and they are associated with a risk of severe poisoning or even death, and provide new challenges in clinical and forensic toxicological practice. Investigations in the field of "designer drugs" may be well illustrated by the case of a suicide of a 21-year old male who ingested a specified dose of a preparation called "Amphi-bi-a" that contains bk-MBDB, chemically 2-methylamino-1-(3,4-methylenedioxyphenyl) butan-1-one, which belongs to the cathinone group, as a synthetic euphoric empathogen and psychoactive stimulant that is chemically similar to MDMA. It is one of more common components of "legal highs" examined in Poland and other countries. The documentation of the case includes a clinical assessment of the patient's health status performed during his almost 4-h hospitalization before death, autopsy and histological examinations supported by toxicological findings revealing bk-MBDB at extremely high concentrations (at 20 mg/l in the blood and 33 mg/kg in the liver); hence, this body of evidence contributes to knowledge in the field of "designer drugs". Inventions of designers of new psychoactive xenobiotics, which are much in demand, especially in view of the dynamic Internet marketing, which drums up narcobusiness, must be balanced by a national strategy developed by medical, legal and educational circles in the modern civilized world in order to prevent the spreading of the phenomenon., (Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.)

This study presents five cases of completed suicides in which injures were situated in parts of the body changed by illness or in areas related to medical treatment. Following early research, physical illness has been identified as an important risk factor for suicide and for suicidal behavior. It is an unusual and rare problem when opposition to somatic disease is signified by the localization and character of suicidal injures. These cases illustrate such a phenomenon, where the body--in a symbolic way is engaged in expression of human stress and frustration. This is caused by the loss of the possibility to control one's own life. The authors also discussed this problem in the view of the literature.

In view of the appearance of cases of homicides by stabbing in which the killer claims that the victim committed suicide cases of homicides and suicides of this type have been compared. Contrary to the opinions appearing in the medico-legal issues stating that the commonly described features of the suicidal wounds such as tentative wounds, stabbing in the intercostals space, "removal" of clothes do not appear in some of the suicides, a few of these features do appear in each of the examined cases. Having considered the horizontal wound arrangement in the skin, which is a newly described feature, the differentiation between homicides and suicides are more categorical. In addition to that, the low level of alcohol in the blood is an extremely characteristic feature of the suicide by chest stabbing. On the contrary, typical features of suicidal death don't appear in cases of "aggressive self-destruction", self inflicted fatal wounds inflicted by a person with mental disorders.

The authors present two cases stated by the Legal Authorities to be suicides. Medicolegal autopsy picture in both was absolutely unusual when comparing with these type of cases and suggested death due to crime.