Hanging — A review

A study of 201 cases of death due to hanging, 95% being suicidal in nature and 5% being accidental; in addition there was one judicial hanging. The majority of deaths were in persons over 50 years of age, males predominating particularly in the 50 – 60 age group. In contrast to the Registrar General's annual returns for suicide which show a steady decrease over the past 20 years, deaths due to hanging have increased considerably, particularly in the last decade. This trend could be related to the dramatic fall in carbon monoxide poisoning and more circumspect prescribing of barbiturate drugs.     

Caustic Ingestion—A Forensic Overview

The ingestion of corrosive substances may produce severe burns to the upper aerodigestive tract and stomach, particularly if the pH is greater than 12 or less than two. There is a biphasic age grouping with adult cases most often involving self‐harm and pediatric cases accidental ingestion. Three cases are reported to demonstrate characteristic features following the ingestion of potassium hydroxide, glacial acetic acid and Lysol^®, respectively. All deaths were due to the effects of caustic burns to the upper aerodigestive tract, esophagus and stomach with perforation and/or hemorrhage. The extent of injuries in these cases depends on the nature, amount, and concentration of the agent and on the exposure time. A point to note at autopsy is that tissue damage may also occur from postmortem exposure. Typical injuries involve perioral, limb, and trunk burns, with extensive aerodigestive liquefactive/coagulative necrosis causing hemorrhage and perforation.     

承載厚望的中歐法學院

2008年10月23日，中國政法大學昌平校區禮堂， 中歐法學院成立典禮。     

Youth Gangs — A Special Problem

Beginning in the mid-1980s, some youth gangs with origins in the large urban centers of Los Angeles, Miami, Chicago, Detroit, and New York, became major criminal entrepreneurs in the supply of illicit drugs. In a very short time, many of these gangs have developed intrastate and interstate networks for the purpose of expanding their highly profitable participation in the state, regional, and national illegal drug sales market. Significant levels of violence and related criminal behavior have accompanied this phenomenon. Youth have always been distributors and sellers of drugs within their local peer groups, whether these groups were informal or organized as “gangs.” Most youth who are involved with illicit drugs have not had direct contact with drug dealers. Their street, school, or neighborhood suppliers have been friends and acquaintances. The onset of domestically-produced drugs or drug compounds presented an opportunity for youth to be in control of the supply. Domestically grown marijuana represented such an opportunity. Clandestine laboratory-produced methamphetamine and PCP increased it. And, finally, domestically-manufactured “crack” or “rock” cocaine opened the floodgates for serious youth participation in the huge profits available through illicit drug trafficking.     

Fate and Behavior of Gunshot Residue—A Review

A review of the literature concerning the fate and behavior of gunshot residue (GSR) is presented. A number of concomitant parameters including firearm and ammunition type, plume and GSR material characteristics, travel distances, chemical composition and GSR morphology are critically discussed in relation to their effects on the distribution and deposition, transfer and persistence processes of GSR. The underlying mechanisms associated with such processes are also considered. Knowledge of these processes on GSR materials could provide valuable information concerning scene preservation and subsequent forensic sampling. The number of GSR particles deposited can vary significantly with each firearm discharge, highlighting the potential to produce distinctive data in each individual case. With the continual development and compositional changes of new ammunition types, further evaluation of the effect these processes may have on GSR evidence and their possible influence on the interpretation of the analytical results should be given due consideration.     

The Promise of Legal Semiotics

The aim of the 2008 Roundtable was to focus on the progress to date in the many facets—methodological, epistemological and conceptual—of the field of legal semiotics, specifically the contribution of different schools and forms of semiotics as well as emerging and emergent semiotics approaches which can be used in researching and interpreting law and legal phenomena. The participants sought primarily to engage with the epistemological and methodological challenges which the field currently faces and to discuss the implications of these.     

Unplanned Complex Suicide—A Consideration of Multiple Methods

Detailed death investigations are mandatory to find out the exact cause and manner in non‐natural deaths. In this reference, use of multiple methods in suicide poses a challenge for the investigators especially when the choice of methods to cause death is unplanned. There is an increased likelihood that doubts of homicide are raised in cases of unplanned complex suicides. A case of complex suicide is reported where the victim resorted to multiple methods to end his life, and what appeared to be an unplanned variant based on the death scene investigations. A meticulous crime scene examination, interviews of the victim's relatives and other witnesses, and a thorough autopsy are warranted to conclude on the cause and manner of death in all such cases.     

Wandering Dementia—A Syndrome with Forensic Implications

Wandering behavior in dementia may result in significant injury or death. Search of files at Forensic Science South Australia over a 20‐year period (1998–2018) identified nine individuals with dementia who were found deceased having been reported as missing from home/residential facilities (M:F, 6:3; age range, 54–92 years; average, 77.7 years; median, 80 years). The established clinical diagnoses were of dementia in seven cases and Alzheimer disease in two. Deaths were unnatural in six cases: hypo/hyperthermia three, drowning two, train impact one; natural in two cases due to ischemic (N=1) and valvular heart disease (N=1); and undetermined in one case due to marked decomposition. There were five fatalities in winter. Exposure and drowning were significant causes of death. The increasing aging population means cases of lethal wandering dementia will be more often encountered among forensic cases in future. Issues around duty of care and suicide should be considered in evaluating cases.