The value of examination aids in victim identification: a retrospective study of an airplane crash in Nepal in 2002

After the crash of an airplane in Nepal in the year 2002, the dental status of the 14 European victims was examined at autopsy as well as after additional removal of the soft tissue and compared with antemortem findings which were available in 11 cases. Re-examination of all jaws showed that nine composite fillings and seven root fillings as well as one parapulpal pin could not be detected during autopsy. Because tooth-coloured restorations may be overseen even by an experienced expert, the findings underline the necessity of performing a full resection of both jaws and removal of the soft tissue. Furthermore, X-ray analysis of the jaws and the use of phosphoric acid or ultra violet radiation for recognizing tooth-coloured restorations are recommended.     

A multitask scientific investigation resolved an unusual road crash case.

Crime or accident scenes are sometimes almost unbelievable. Elements of the scene can be so strange that a reconstruction of the event is almost impossible. What can the investigator do in such a case? The only solution is to collect all the evidence and samples, even if they appear useless, and send them to specialised laboratories. Scientific data are held in high esteem by the law and court proceedings consequent on crashes will almost certainly require analytical results of one sort or another to be presented as evidence. The case presented is one of those strange and almost unbelievable cases with little physical evidence, no eyewitnesses and the almost fortuitous collection of one unique, incredibly small, sample. The prosecutor's decision to instruct unusual but appropriate experts turned out to be successful.     

Unexpected Death in Elephantiasis Due to an Abnormal Life-Style

Abstract:  A 22-year-old man was found dead after he had continued to sit on a reclining chair for 2 years. He had consumed an unbalanced diet, kept wearing the same pair of socks and never washed himself for the term. His skin of bilateral crura developed into elephantiasis with severely festered ulcers on its surface. At autopsy, subcutaneous edema was significant in his lower limbs, and chronic circulatory disturbance of lymphoducts and veins was observed histologically. There were no crucial findings to account for chronic edema in the lower limbs. It has been reported that maintaining a seated posture obstructs both lymphoducts and veins because of bending the groin, decreases their return flow by inducing muscular atrophy, and causes subcutaneous edema in the lower limbs. Oligotrophia and dirt on his limbs might have exacerbated the chronic edema in elephantiasis. We concluded that a long-term abnormal life-style had caused fatal elephantiasis.     

Further investigation of findings reported for the Minnesota sex offender screening tool-revised

Among a number of widely used risk assessment instruments with adult sexual offenders, the Minnesota Sex Offender Screening Tool-Revised (MnSOST-R) has been subject to relatively few evaluation studies. Only two independent research groups have published replication studies in the peer-reviewed literature with data not provided by the MnSOST-R's developers, and the results regarding the accuracy of predicting sexual recidivism have been mixed. In this article, important differences between the Barbaree et al. and Langton et al. studies are presented. Analyses reported for the various subsets comprising these two samples indicate that coding discrepancies in the Barbaree et al. study account for the different findings, with a moderate level of predictive accuracy using the Receiver Operating Characteristic curve ultimately found for the MnSOST-R in both data sets.     

Unexpected infant death attributable to cardiac tumor or cardiomyopathy. Immunohistochemical and electron microscopical findings in three cases

The pathological findings, including immunohistochemical and electron microscopical findings, in three infants who died unexpectedly of cardiac tumor or cardiomyopathy are reported. The first was a 13-month-old boy with tuberous sclerosis and multiple rhabdomyomas of the heart, who presented with a postpartal cardiac murmur and moderate cardiomegaly. The further history was unknown. The rhabdomyoma nodules were composed of spider cells containing small amounts of desmin and myosin as well as isolated myofibrils. Microscopically small glioma nodules contained high amounts of GFAP. The second case, a boy 4 months of age, died of a large benign fibrous histiocytoma of the heart after an uneventful history. Tumor cells contained alpha-1-anti-chymotrypsin and lysozyme. The third case, a girl 2 months of age, died unexpectedly of histiocytoid cardiomyopathy. The affected cells contained fat droplets, glycogen granules, many leptomer myofibrils and small amounts of myosin and desmin.     

Contemporary technology in the development of an optimal juvenile investigation

The capacity of juvenile courts to aid troubled youth depends upon the quality of information upon which dispositional decisions are based. Difficulties in accomplishing adequate juvenile investigations compromise the courts' ability to achieve their objectives. Deficiencies in traditional juvenile investigations are identified, and characterized as including conceptual, procedural, and manpower problems. Some basic requirements of an “optimal” juvenile investigation are presented. The authors' Computer Assisted Regional Evaluation System is used to illustrate how contemporary technological advances in on-line computer systems can provide a basis for accomplishing such optimal investigations, can facilitate the achievement of the objectives of the juvenile justice system and, at the same time, upgrade the capabilities of its juvenile probation workers.     

Unexpected death due to intestinal obstruction by a duplication cyst in an infant

An 11-month-old female infant died at home after being diagnosed as having gastroenteritis. Autopsy examination revealed a distended distal ileum filled with a large amount of watery contents, and a 3 cm x 3 cm x 4 cm cyst at the ileocecal part of the cecum that was histologically consistent with a duplication cyst. The cause of death was determined to be acute dehydration due to intestinal obstruction caused by a duplication cyst. This case indicates that intestinal obstruction by a duplication cyst should be recognized as a cause of unexpected death in infants.     

交通事故车速测算方法探析

本文较为系统地归纳分析了交通事故车辆行驶速度的一系列方法，主要是理论计算法、软件分析法、经验公式法、实验验证法、仪器读取法、监控信息测定法和人体特征损伤分析法等，为科学分析事故成因提供依据。     

"Swinging in the park". An investigation of an autoerotic death

Death during autoerotic episodes is of special concern to law enforcement officials, the coroner or medical examiner, the family of the decedent, and to society as a whole. As in the probing of any violent demise, accurate preservation of all evidentiary material, complete photographic documentation, reconstruction of the scene, and interviews with family and acquaintances ("psychological autopsy") are mandatory for proper completion of the case. A recent, atypical instance of sexual asphyxia arising from a bizarre incident exemplifies the foregoing dicta and provides a vivid example of "psychopathia sexualis."     

Posting of workers across the EU: an empirical investigation

This paper investigates the effects of the intra-European posting of workers on domestic labour markets in the years 2007–2009. Instrumental variables related to neighbouring countries’ populations are used to address the endogeneity between posting and labour market features. Contrary to conventional wisdom, we find that an intensification of posting inflows is not likely to displace domestic workers, at any educational levels. Instead, an increase in posting from abroad may raise domestic labour costs. No significant effects are found on sending country labour market variables. Results point towards the development of possible synergies between domestic and posted workers, so that posting can actually improve labour efficiency and put upward pressure on labour costs.     

Medicolegal investigation of an eighteenth century homicide

The skeleton of an adult man, recovered from an eighteenth century French fort site in Indiana, exhibited a series of sharp force wounds. The lesions, three cranial and one postcranial, had apparently been made by a heavy metal instrument similar to one of the European ax heads discovered elsewhere at the site. In this paper we describe the wounds, argue that the instrument used to create them was a European ax, and offer the opinion that the manner of death in this case was homicide.     

Detection of Gunshot Primer Residue on Bone in an Experimental Setting—An Unexpected Finding*

Abstract: Pork ribs with intact muscle tissue were used in an experimental attempt to identify bullet wipe on bone at distances from 1 to 6 feet with 0.45 caliber, full metal jacket ammunition. This resulted in the unexpected finding of primer‐derived gunshot residue (GSR) deep within the wound tract. Of significance is the fact that the GSR was deposited on the bone, under the periosteum, after the bullet passed through a Ziploc^® bag and c. 1 inch of muscle tissue. It is also important to note that the GSR persisted on the bone after the periosteum was forcibly removed. The presence of primer‐derived GSR on bone provides the potential to differentiate gunshot trauma from blunt trauma when the bone presents an atypical gunshot wound. In this study, the presence of gunshot primer residue at a distance of 6 feet demonstrates the potential for establishing maximum gun‐to‐target distance for remote shootings.     

我国经济案件数量近年意外下降的原因考察

基于全国、省市以及基层的数据,有四种可能的解释——纠纷解决的结构变化、经济发展、社会转型和法院的运作不良。以上四个假说各有一定的道理,但没有一个能够为这个令人意外的下降给出简单、直观和充分的解释。由于纠纷解决的结构变化基本上无法言之成理,下降的原因要么在于社会中纠纷总量的下降,要么在于潜在的诉讼当事人将纠纷带到法院进行诉讼的意愿降低。经济发展和社会转型的假说对解释案件数量的上升有一定的解释力。而社会转型特别是法院的运转不良更会导致解释案件数量的下降。在一定的程度上,中国新近出现的情况可能对传统上认为已经解决的案件数量变化与社会经济条件之间的关系形成新的挑战。     

Involvement of Amphetamines in Sudden and Unexpected Death

Abstract:  In the present study, the effects of amphetamine-class drugs were examined in cases reported to the Victorian coroner from 2001 to 2005 to determine if death can occur from the use of amphetamine-class drugs alone. A total of 169 cases were reviewed where a forensic autopsy detected amphetamine(s) in the blood. Pathology, toxicology, and police reports were analyzed in all cases to ascertain the involvement of amphetamine-class drugs in these deaths. In Victoria, methamphetamine (MA) is the principal abused amphetamine-class followed by methylenedioxymethamphetamine (MDMA). There were six cases in which a cerebral hemorrhage caused death and three cases in which serotonin syndrome was established as being caused by the interaction of MDMA and moclobemide. There were 19 cases in which long-term use of amphetamines was associated with heart disease. There were three cases where amphetamine-class drugs alone were regarded as the cause of death, of which two cases exhibited high levels of MDMA and lesser amounts of MA and/or amphetamine. There were no cases in which significant natural disease was absent and death was regarded as caused by the use of MA. There was no correlation between blood concentration of drug and outcome.     

The paraphilia-related disorders: an investigation of the relevance of the concept in sexual murderers

Paraphilic disorders (PAs) and sexual preoccupation are known risk factors for recidivism in sexual offenders. Nonparaphilic sexual excessive behaviors-so-called paraphilia-related disorders (PRDs), like paraphilias, are also characterized by sexual preoccupation and volitional impairment and can be diagnosed in paraphilic men. The prevalence and clinical significance of PRDs in sexual homicide perpetrators, however, is unknown. We investigated the relationship between PAs and PRDs retrospectively in a sample of 161 sexual murderers. Four groups were compared: men without a PA or a PRD diagnosis, men with at least one PRD but no PA, men with at least one PA but no PRD, and finally, those with a combination of both (PA+PRD). The PA+PRD group had the most lifetime cumulative sexual impulsivity disorders, more developmental problems, the highest persistent frequency of sexual activity, the highest number of previous sexual offences, more sexual sadism, and compulsive masturbation. Men of the PRD subsample had suffered more from childhood sexual abuse, showed more promiscuity, psychopathy, and alcohol problems. The use of the PRD concept in this special offender group should be further investigated with prospectively designed studies.     

Morphological findings in fatal drug addiction. An investigation of injection marks, endocrine organs and kidneys

Tissue sections from injection marks from 30 drug addicts and sections from endocrine organs and kidneys from an additional 33 addicts were studied together with endocrine organs and kidneys from 20 'normal' persons. All 83 persons were submitted for medico-legal autopsy at the Institute of Forensic Medicine in Copenhagen. In fresh injection marks haemorrhage in dermis and subcutis was present histologically in all cases. Acute inflammation was present in 38% and acute inflammation together with chronic changes in 41%. Fibrotic thickening of vein wall was seen in 14% and thrombosis in 10%. Birefringent foreign material occurred in 35%. In old injection marks and scars chronic inflammatory changes were observed in 93%, fibrotic thickening of vein wall in 20% and thrombosis in 10% of the cases. Birefringent material occurred in 17%. By comparison of changes in injection marks with the size and histological changes in the corresponding axillary lymph nodes, there was a tendency to a relation between chronic inflammatory changes in old injection marks/scars and enlargement of the lymph nodes in question, but no correlation to the histological degree of immunoactivity. Regarding alterations in the endocrine organs and the kidneys no important differences were demonstrated between drug addicts and 'normal' persons.     

Examination of lightbulb filaments after a car crash: difficulties in interpreting the results

A drunk car driver was involved in a fatal crash with a scooter at night. Examination of the lightbulbs from the vehicles revealed some mechanical and analytical incompatibilities. The laboratory's initial observations led to complementary police investigations which finally solved the first incompatibility. The different precautions taken by the technical police investigators on the crime scene finally allowed the forensic scientists to establish the functional state of the lightbulbs during the crash.     

A suicide decision as a motive for murder--an airplane as the murder weapon

It is supposed that some fatal aviation accidents of "cause unknown" especially of light and private airplanes are possibly intended by a suicidal act. However it is difficult to prove this suggestion. A case of a light aircraft accident is reported in which the medicolegal autopsy and the police investigation revealed, unexpected, a simultaneous homicide and suicide caused by a stabbing attack on the pilot. This paper stresses the importance of autopsies of the victims in aircraft accident investigation and discuss the medicolegal and psychopathological aspects of the case.