The identification of exhumed bodies; a brief report of the exhumation of the unidentified after the Tangiwai Railway accident.
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Accidents↗
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Evaluation of the correlation between time corpses spent in in-ground graves and findings at exhumation.
To determine how long pathological findings persist after burial and which factors play a role in decomposition of a corpse, we evaluated all bodies exhumed under the auspices of the Institute of Legal Medicine at the Hannover Medical School between 1978 and 1997. A total of 87 exhumations (54 men, 33 women) were performed in this period. The time bodies remained buried varied between 5 days and 16.8 years (mean 1.5 years, median 2.3 months). Fifty-six percent of the bodies were exhumed after at most 3 months, 10% remained buried for greater than 3 years. Pathomorphological changes of the soft tissues and the internal organs remained evident after several months, in some cases after several years of burial. Overall, it was possible to evaluate internal organs after 5 years of burial. Bodies became mostly decomposed after approximately 8 years at the earliest, although it was still possible to evaluate some soft tissue remnants after 16.8 years. In stepwise logistic regression, both the length of time the body was buried (p < 0.00005) and the time of year (p < 0.0019) clearly affected the rate of physical change. The variables of sex (p = 0.33), age (p = 0.61) and changes in the integrity of the body before burial (trauma, autopsy before burial; p = 0.15) did not influence the physical state of the body after exhumation. Our data show that much information may be gained from an exhumation even after significant time has passed since burial.
Adolescent↗
[Morphological findings and medical insurance aspects in 371 exhumations].
OBJECTIVES: The morphological findings in organ systems following exhumation, form the basis for answering a number of medical insurance issues. The aim of this study was to analyse the development of the number of exhumations performed and the medical insurance relevance over a 31-year-period. METHODS: A total of 371 exhumations, performed between 1967-1998 at the Institute of Pathology, Occupational Associations Hospital, Bochum, for medical insurance reasons were evaluated. RESULTS: The average number of days after burial was 74, ranging from 9 to 47.8. For the first third of the period investigated, the proportion of exhumations was 3.5% of all autopsy cases, for the second third this fell to about 0.4% and rose to 1.5% for the last third. In the first two-thirds, the main reasons for the exhumations were related to the grading and effects of pneumoconioses in connection with the cause of death. In the last third, asbestos-associated diseases were mainly involved. In 99.2% of all cases, the autopsy results revealed important evidence for clarification of the medical insurance issues. The current catalogue of expectations listing the pathomorphological findings which can be expected after certain periods of internment, could be extended by our own results.
Academies and Institutes↗
[131 cases of exhumation in Hamburg and their significance for legal medicine and medical insurance (1971-1995)].
The results of 131 forensic exhumations performed by the Institute für Legal Medicine in Hamburg from 1971 up to 1995 are presented and analysed. 50 exhumations have been ordered by legal authorities concerning criminalistic aspects. 81 cases have been commissioned by insurance companies. 7 categories of cases have been established which are separately analysed (e.g. suspicion of intoxication, accidental cases, occupational diseases). A synopsis presents the evidence of several pathological findings in regard to the body's lay-days in the grave compared with similar studies. The study gives evidence of the value of specific findings even if the body had been buried one or two years before exhumation. In 65 of 92 cases the suspected cause of death could be confirmed. In 121 cases the cause of death was definitely cleared up by autopsy. 125 exhumations (approximately 95%) have been successful concerning the underlaying question that gave reason for further examinations. Exhumations turned out to be very useful in order to clarify insurance-related medical questions.
Autopsy↗
Analysis of 155 consecutive forensic exhumations with emphasis on undetected homicides.
A total of 155 consecutive forensic exhumations performed in Münster, Germany from 1967 to 2001 were evaluated retrospectively on the basis of the autopsy report, the police report and the death certificate. Histology and toxicology were performed in most cases. The postmortem intervals varied from 8 days to 8 years. Compared to other countries, the autopsy rate was low (1.2-1.4%) and the exhumation rate high (0.016%): principle of reciprocity. The cause of death could be clearly determined in 103 cases (66.5%) and histology or toxicology were decisive in 40%. Some findings were discernable using immunohistochemistry after considerable postmortem intervals, such as acute myocardial infarction after 1 year and pneumonia after 2 years and a diazepam intoxication was determined after 4.5 years. Major deviations between the cause of death as stated on the death certificate and as diagnosed after autopsy existed in 57 cases (37%). A more detailed analysis revealed five subgroups. 1. primary suspicion of intoxication (n=18) confirmed in 6 cases including 3 homicides (with parathion, clozapin, diazepam) which are described in more detail. 2. primary suspicion of homicide other than poisoning (n=51) confirmed in 19 cases. There was a serial killing of 15 patients by injection of air. In the remaining 4 cases, a shaken infant, craniocerebral injuries from blows with beer bottles, a craniocerebral gunshot and a multiplicity of blunt force injuries were diagnosed. The latter two cases are described in more detail. Superficial external examinations and the low autopsy rate were 2 common reasons for the occurrence of "buried homicides" (n=22)-not a single forensic autopsy had been performed directly after the death of the victims. 3. primary suspicion of medical malpractice (n=39). 4. accidents including traffic accidents (n=30). 5. clarification of the cause of death, circumstances or identity (n=17). Exhumations were frequently successful for recovering evidence which should better have been collected immediately after the death of an individual. Exhumations can also be regarded as an instrument to evaluate the quality of death certificates and death investigations.
Adolescent↗
Exhumations: synopsis of morphological and toxicological findings in relation to the postmortem interval. Survey on a 20-year period and review of the literature.
Before an exhumation the question of its possible success usually arises. This paper aims to act as an aid by providing comprehensive lists ("expectation catalogues") of morphological and toxicological findings with their corresponding postmortem intervals. All organ systems are included. The results are based on the retrospective evaluation of 46 exhumations performed at the Cologne Institute of Forensic Medicine in a 20-year period (1974-1994) and a review of the literature. In our own material (34 males, 12 females, age range: 2 days-91 years) the postmortem interval varied from 6 days to 20.5 years. Exhumations were performed by order of criminal courts (n = 28), social insurances (n = 13) and private persons (n = 5). Main indications were problems of causality in social and civil law (n = 14), suspected intoxications (n = 10), possible medical malpractice (n = 7), criminal aspects of traffic accidents (n = 7) and identifications (n = 5). The expectation catalogues include the following remarkable items (with postmortem interval) from our own material: coronary thrombosis (3.5 months), granulation tissue in myocardial infarction (3.5 months), myocardial fibrosis (2.5 years), coronary sclerosis (7.5 years), femoral vein thrombosis and pulmonary embolism (3.75 months), pneumonia (3 months), pulmonary emphysema and chronic bronchitis (2.5 years); detection of strangulation marks (2 months); preservation of bone marrow histology (3 months), gastrointestinal tract in continuity (7.5 years), macroscopic and histological cerebral structures (17 years); toxicological detection of phenobarbital (6 weeks), CO-Hb (9.5 weeks), chlorprothixene (5.5 years), diazepam (7.5 years), furosemide (7.5 years) and parathion (E 605) (17 years). The cause of death could be clarified with sufficient certainty in 36/46 cases (78%). Exhumation problems could be answered completely in 39 cases and partly in seven further cases. On the whole this review again underlines the importance and value of this special kind of body examination even after long postmortem periods.
Academies and Institutes↗
Pliocene eclogite exhumation at plate tectonic rates in eastern Papua New Guinea.
As lithospheric plates are subducted, rocks are metamorphosed under high-pressure and ultrahigh-pressure conditions to produce eclogites and eclogite facies metamorphic rocks. Because chemical equilibrium is rarely fully achieved, eclogites may preserve in their distinctive mineral assemblages and textures a record of the pressures, temperatures and deformation the rock was subjected to during subduction and subsequent exhumation. Radioactive parent-daughter isotopic variations within minerals reveal the timing of these events. Here we present in situ zircon U/Pb ion microprobe data that dates the timing of eclogite facies metamorphism in eastern Papua New Guinea at 4.3 +/- 0.4 Myr ago, making this the youngest documented eclogite exposed at the Earth's surface. Eclogite exhumation from depths of approximately 75 km was extremely rapid and occurred at plate tectonic rates (cm yr(-1)). The eclogite was exhumed within a portion of the obliquely convergent Australian-Pacific plate boundary zone, in an extending region located west of the Woodlark basin sea floor spreading centre. Such rapid exhumation (> 1 cm yr(-1)) of high-pressure and, we infer, ultrahigh-pressure rocks is facilitated by extension within transient plate boundary zones associated with rapid oblique plate convergence.
Journal Article↗
[Exhumations procedures for investigating the genetic link in bones].
OBJECTIVE: To identify technical problems in exhumations performed for DNA detection in bones and to propose solutions through a protocol. METHODS: A prospective and qualitative study of exhumations was carried out according to the methods proposed in the medical legal literature. From 1995 to 1998, were performed 10 exhumations to collect human remains for DNA extraction. Of them, seven cases were of civil interest and three of criminal. Alternatives were sought to overcome technical difficulties found during the execution of these procedures. RESULTS: For all cases, there was scarcity of useful information to identify the human remains. In half of them, identification was based on the individual's morphological characteristics, given by their relatives. Individual morphological characteristics contributed to identification in 50% of cases. In three cases, it was possible to determine only the sex, and in one of them, only the age. Lack of infrastructure and police security in the cemeteries impaired the examination. CONCLUSIONS: To assure the reliability of the DNA molecular examination, it is necessary to identify the individual to whom the exhumed mortal remains belonged. To an efficacious investigation, it is paramount to have a working protocol that will cover, among other issues, those concerning identification, infrastructure and staff safety at the site of examination.
Adolescent↗
[Exhumation and no end. A comparative analysis].
If the order to carry out an autopsy has been neglected, exhumation is the only possibility to obtain findings which allow conclusions on the manner of death, cause of death and chain of events. The quality of findings will however be influenced by advanced states of putrifaction. In spite of identical legislature the number of exhumations carried out at the institutes of legal medicine in München and Münster differs considerably, as demonstrated by a comparison of the data from the years 1993-1996. As previously described by other authors, there is a reciprocal correlation between the number of autopsies and the exhumation rate. The frequency of autopsies which are ordered can be explained by the varying application of the statutory framework by the investigation procedure. In some cases where an exhumation has been carried out, it was difficult to comprehend why an autopsy was not originally ordered.
Autopsy↗
Archaeological techniques for exhumations: a unique data source for crime scene investigations.
If exhumations to retrieve a body or body samples are conducted according to archaeological methodology, they may provide evidence on events which occurred during the interment process. This article discusses the exhumation methodology employed during exhumations in a tropical environment and provides a case study to serve as an example of the data that can be obtained beyond the simple recovery of human remains.
Archaeology↗
Guidelines for international forensic bio-archaeology monitors of mass grave exhumations.
The systematic exhumation of mass graves is becoming a frequent occurrence globally. Historically, it has been mostly anthropologists with their particular expertise in osteology that have been engaged by non-governmental organizations (NGO) to monitor mass grave exhumations and postmortem examinations, conducted by a host country or international forensic team, to ensure competence and a concern for justice. The excavation of graves and examination of their contents for the purposes of personal identification of victims and/or collection of evidence for prosecution require the creation of standards that meet international concerns for forensic investigation of the highest quality. However, many anthropologists are not experienced with large sites; do not have much, if any, expertise in archaeology; and are not equipped by training to assess the quality of a forensic pathologist's autopsy. This contribution is directed to both the NGO and the bio-archaeologist who are involved in the exhumation of mass graves. The experience and skills appropriate for the bio-archaeological monitor are outlined; similarly, the policies and standard operating procedures (SOP's) of the NGO that will enable the bio-archaeologist to perform their task are detailed. It is becoming increasingly clear that how a grave site was created, filled, and concealed, along with subsequent processes of site formation (e.g. slumping, robbing, animal scavenging and taphonomic alteration), require the expertise of a forensic archaeologist to discover and record site complexity along with associated forensic evidence. Similarly, the bodies themselves which are often skeletonized, fragmented and commingled pose challenges for the anthropologists and pathologists whose postmortem examinations must be critically evaluated. A model protocol for observations to make at the site as well as at the mortuary facility is provided to guide the monitor and to provide a structure for reports which are of standardized content suitable for international agencies concerned with mass grave investigation.
Burial↗
Evaluation of the addiction history of a dead woman after exhumation and sectional hair testing.
In Greece, sectional hair analysis, in addition to clinical examination, has been used as a valuable tool for the confirmation of a person's history of drug use. The present report concerns the toxicologic analysis of the exhumed remains and hair samples of an 18-year-old woman. Postmortem toxicologic analysis of blood and urine confirmed recent opiate and cannabis use and indicated that death was associated with heroin abuse. Several months later, the woman's family asked for exhumation and reexamination of the body, insisting that the cause of death was homicide. The investigating judge ordered exhumation and new medicolegal examination of the body. The investigation of the drug profile along the hair shaft was undertaken by analyzing hair sections 1 cm from the hair root for morphine, 6-monoacetylmorphine, heroin, and cannabinoids. The total lengths of the hair samples ranged from 8 to 11 cm. The total morphine levels in the hair sections corresponding to the 3-month period before death were significantly lower (1.5-2.85 ng/mg) than those of the 4- to 10-month period before death (7.4-14.8 ng/mg). An interpretation of these results may be occasional drug use (with considerable attenuation of use during the last 3 months before death). Decrease of tolerance to heroin caused by abstinence and relapse in use could have been the cause of death.
Adolescent↗
Exhumation following incorrect identification. A case report.
The exhumation of two victims of a light aircraft accident was performed in February 1991 at Oudtshoorn, Cape. The exhumation was ordered by the magistrate on request of the parents of one of the victims who suspected that their son had been wrongly identified at the postmortem examination. At the pre-burial autopsy all the victims were positively identified, but the identity of two of the victims was subsequently reconsidered and reversed because one of them wore a silver bracelet. Burial then took place. The exhumation was ordered one month after the accident at which stage the bodies were in an advanced state of decomposition. Oral autopsies were performed on each of the victims, the jaws were radiographed and postmortem dental records drawn up. Dental records were obtained from the dentists who treated them and the information from these records was used to draw up ante-mortem dental records. A comparison between the postmortem and ante-mortem records showed that the victims were incorrectly identified and reburial in the correct graves was subsquently carried out. This case again emphasies the importance of dental identification in cases of severe burning, multilation or decomposition in order to avoid mistaken identity and incorrect burial in the future.
Accidents, Aviation↗
Dental evidence of exhumed human remains from the 1991 war in Croatia.
The aim of this paper is to present the post mortem dental evidence and dental health of the victims exhumed throughout the territories of Croatia that was temporarily occupied during the war. A total number of 62,432 teeth out of 1,253 human bodies exhumed from 5 different counties were analyzed. The majority of victims inhabited those areas before 1991. Post mortem dental characteristics were analyzed according to the American Board of Forensic Odontology and WHO methodology. The results show the highest level of the dental health before 1991 in the Vukovarsko-Srijemska County. The decayed (D), missing (M), filling (F), teeth (T), DMFT of that County was at the lowest level i.e. at 5.2. In all of the other counties, it was always between 6 and 12. The material most frequently used for the dental fillings was amalgam. Its highest frequency level was recorded in the County 4 (8%) and lowest in the County 1 (1.5%), p<0.001. The most frequent prosthodontic appliances were acrylic dentures. Their frequency was lowest in the County 5 (1.3%) and highest in the County 3 (11.6%), p<0.001. Determination of sex and dental age showed that victims were mostly men (79%) of middle and elderly age (89%). Teeth were useful also for monitoring of the quality of exhumations--taking into consideration number of empty dental sockets. The highest number of empty dental sockets was recorded in the County 3 (40.4%) and lowest in the County 1 (13.5%), p<0.001. Even after many years in the soil, teeth proved to be the most preserved human organs and valuable indicators of identity as well as of the way of life before death.
Adolescent↗
Identification of exhumed remains of fire tragedy victims using conventional methods and autosomal/Y-chromosomal short tandem repeat DNA profiling.
In a fire tragedy in Manila in December 1998, one of the worst tragic incidents which resulted in the reported death of 23 children, identity could not be established initially resulting in the burial of still unidentified bodies. Underscoring the importance of identifying each of the human remains, the bodies were exhumed 3 months after the tragedy. We describe here our work, which was the first national case handled by local laboratories wherein conventional and molecular-based techniques were successfully applied in forensic identification. The study reports analysis of DNA obtained from skeletal remains exposed to conditions of burning, burial, and exhumation. DNA typing methods using autosomal and Y-chromosomal short tandem repeat (Y-STR) markers reinforced postmortem examinations using conventional identification techniques. The strategy resulted in the identification of 18 out of the 21 human remains analyzed, overcoming challenges encountered due to the absence of established procedures for the recovery of mass disaster remains. There was incomplete antemortem information to match the postmortem data obtained from the remains of 3 female child victims. Two victims were readily identified due to the availability of antemortem tissues. In the absence of this biologic material, parentage testing was performed using reference blood samples collected from parents and relatives. Data on patrilineal lineage based on common Y-STR haplotypes augmented autosomal DNA typing, particularly in deficiency cases.
Autopsy↗
Proof of air embolism after exhumation.
The detection, storage, and analysis of gas taken from the heart ventricle is necessary to diagnose a fatal air embolism and this requires special precautions during autopsy. When the results of gas analysis correspond to the criteria defined by Pierucci and Gherson the diagnosis "air embolism" is justified. In cases showing putrefaction the diagnostic value of gas analysis was negated. In a series of 15 patients who were assumed to have been killed by air injection in a peripheral vein the corpses were exhumed and a full medico-legal examination was carried out including gas analysis. In 8 cases results could be obtained indicating a mixture of embolised air and gases of putrefaction. In two control groups comprising 10 exhumed bodies and 30 cases showing advanced putrefaction, gas analysis showed putrefaction gases except in 5 cases with gas volumes less than 5 ml in the right ventricle. Therefore gas analysis can be helpful to diagnose fatal air embolism even in cases showing putrefaction while the diagnosis of putrefaction gases only does not exclude this diagnosis.
Aged↗
Earthquake rupture dynamics frozen in exhumed ancient faults.
Most of our knowledge about co-seismic rupture propagation is derived from inversion and interpretation of strong-ground-motion seismograms, laboratory experiments on rock and rock-analogue material, or inferred from theoretical and numerical elastodynamic models. However, additional information on dynamic rupture processes can be provided by direct observation of faults exhumed at the Earth's surface. Pseudotachylytes (solidified friction-induced melts) are the most certain fault-rock indicator of seismicity on ancient faults. Here we show how the asymmetry in distribution and the orientation of pseudotachylyte-filled secondary fractures around an exhumed fault can be used to reconstruct the earthquake rupture directivity, rupture velocity and fracture energy, by comparison with the theoretical dynamic stress field computed around propagating fractures. In particular, the studied natural network of pseudotachylytes is consistent with a dominant propagation direction during repeated seismic events and subsonic rupture propagation close to the Rayleigh wave velocity.
Journal Article↗
The exhumation of a World War II Jewish grave.
The results of the exhumation of a mass grave from the time of the World War II are presented. In the course of exhumation it was established that the subjects were 190 individuals (men, women and children) of Jewish origin. All had died a violent death due to gunshot or mechanical injury.
Adolescent↗