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28 February 1990, Volume 6 Issue 1 Previous Issue    Next Issue
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A Brief Introduction to the Institute of Forensic Sciences, PRC ASSOCIATE PROFESSOR LI SHIHENG 1990, 0(1): 1-3+11.  Abstract ( 2971 )   The Institute of Forensic Sciences is an Institute which undertakes research work in forensic medicine and criminalistics, madico-legal identification for more difficult cases and the training of madico-legal examiners. The Institute was established in 1932 and Lin Ji, who had got a doctor degree in forensic medicine, was appointed as the first director. In 1960 both institutes were dissolved.In 1983 the institute was set up again.Prof. Zheng Zhongxuan,a forensic pathologist, was appointed as the first director of the reestablished Institute. Principal fields of research: forensic pathology ,including the cause of the death, the nature of the death, the related lethal weapon and the time of de- ath; forensic clinical medicine, including injury, ability of labour, sexual function and sexual crime, malinger and psychosis; forensic chemistry, including poisoning, toxicology, analytical toxicology and chemical analysis of organic or inorganic substance in crime; medico-legal evidence, including blood stains, secretions, hairs, skeleton, pathernity verification; penal technique, including script verification and relevant research work. Besides, the Institute undertakes the examination of cases from public security departments, procuratorates and courts all over China. The Institute also sents many medico-legal examiners, who were trained there, to public security departments, procuratorates and courts all over China. Research results of the Institute are published are published in "Journal of Forensic Medicine" edited by the Institute or in Journals edited in our country. Another Journal published by our Institute is "International Forensic Medicine".It introduces the papers, abstracts, new techniques etc.in related fields published in other countries. Related Articles | Metrics

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Evaluation of Fibrin Formation for Diagnosis of Antemortem Gunshot Wounds-Comprison Changes Observed by MSB Staining Section Under the Light Microscope and the SEM WU JIAWEN LIAO ZHIGANG DEPARTMENT OF FORENSIC PATHOLOGY SCHOOL OF FORENSIC MEDICINE WEST CHINA UNIVERSITY OF MEDICAL SCIENCES 1990, 0(1): 4-7.  Abstract ( 2022 )   For the purpose of evaluation of fibrin formation for diagnosis the antemortem injuries, 45 cases of gunshot wound sections were observed by MSB staining compared with the SEM. The results showed that the SEM is better than MSB staining method to determine fibrin. Fibrin was found in all of the antemortem gunshot wounds as well as postmortem gunshot wounds within 10 minutes after death under the SEM.It was showed that fibrin can be a marker of antemortem injuries. The morphologic changes and distributions of fibrin were described in detail.The differentiation of fibrin formed in the postmortem gunshot wounds from that formed in the antemortem gunshot wounds is discussed. Related Articles | Metrics

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α-L-Fucosidase Phenotyping in Human semen and Distribution of Fu gene Frequencies in Wuhan, China YANG QINGEN HUANG QIUJU YANG RONGZHI MEI KUN THE FACULTY OF FORENSIC SCIENCE;TONG JI MEDICAL UNIVERSITY;WUHAN 1990, 0(1): 8-11.  Abstract ( 1910 )   Human semen α-L-fucosidase typing was studied by isoelectric focusing on ultrathin layer polyacrylamide gel in Wuhan population. Three common Fu types were observed.The Fu gene frequencies were calculated:Fu~1= 0.7857,Fu~2=0.2143. Our gene frequencies have been comparared to those reported in other population. Related Articles | Metrics

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Primary Study of Age Changes from the Rib (INSTITUTE OF FORENSIC SCIENCES;MINISTRY OF PUBLIC SECURITY;BEIJING) ZHANG JIZONG SHU YONGKANG CHEN SHIXIAN 1990, 0(1): 12-17.  Abstract ( 2125 )   This study introduces the morphological changes of rib as a new method for age estimation by direct observation.The samples consisted of 107 Chinese adult males known age 17-76. The ribs were assigned to one of nine phases(Ⅰ-Ⅸ), based on the changes noted at sternal rib, spinal rib ,spinalrib, and surfaces of the ribbody.The result showed that age estimation from rib is a very good method to determine the age at death. Related Articles | Metrics

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Initial Observation on the Changes of the Postmortem Corneas in Dogs JIANG SHUSHAN ET AL DEPARTMENT OF FORENSIC PATHOLOGY;SHANXI MEDICAL COLLEGE 1990, 0(1): 18-20+2.  Abstract ( 2000 )   The pathologic changes in a postmortem cornea were observed in dogs with light, naked-eyes, and electron microscopy. The dogs were sacrifeced,and their corneas were exicised immediately (used as control), 4, 8, 12, 18 hours, and then 1, 2, 3, 4, 5 days after death. The tissue sections of a cornea were stained with HE and the ultrathin sections were stained with uranyl acetate and lead citrate, and then were examined by light and electron micro-scopy, respectively, The results indicated that normal cornea was so clear and smooth that the pupil can be seen through it.The light microscopic structure of a normal cornea had 3 major layers which were regularly arranged. The corneas showed various degree cloudy and putrefaction from 4 hours to 5 days after death. The changes of a cornea were seen both in its epithelium and stroma by light microscopic examination. The epithelium had an uneven thickness, and some of the epithelium had desquamtions. The stroma irregularily thickness was also noted. The irregular running of the bundles of collagenous fibrils and marked vaculoations between the bundles were observed in the stroma. The desquamtions in some of the endothelium were occured. The organnelles of various cells were destroied ,but the nuclear changes were light by electromicroscopy. These morpholical changes in a postmortem cloudy cornea might be produced by the changes of water amounts in a cornea after death. Related Articles | Metrics

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Studies on the window Glass using X-Ray Fluorescence Analysis (XRFA) YAO ZHONGDONG XI JIANHUA 1990, 0(1): 21-24.  Abstract ( 1984 )   The identification of the window glass is a important question of forensic identification. We assay the element component and their relative content in the window glass using X-ray fluorescence analysis(XRFA).The results from experiment showed: the XRFA method can be used to distinguish the window glass which produced from different factory. This technique has the advantage of non-destructive and non-expendable,so that it is very worthy for forensic science. Related Articles | Metrics

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SEPARATION AND DETERMINATION OF CEPHALOSPORINS IN BLOOD WITH THIN-LAYER CHROMATOGRAPH SUN YAJUAN;WU MUTIAN INSTITUTE OF FORENSIC SCIENCES;MINISTRY OF JUSTICE;PRC 1990, 0(1): 28-32.  Abstract ( 2014 )   In this paper,a method for separating and determinating eight cephalosporins are developed with CS-930 Dual-Wavelenth Thin-Layer Chromatograph scanner. The cephalosporins are confirmed by their Rf and UV bsorbed curves,The relative recovery of extracting cephalothin from blood with chloroform is about 90%.The linear scope of quantiting cephalothin is between 0.5 and 8.0ug. The stability of cephalothin in postmortem blood is also investigated. Related Articles | Metrics

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The Species Identification of Bloodstain by the Immunofluorescence Test DEPARTMENT OF FORENSIC SEROLOGY SUN YAT-SEN UNIVERSITY OF MEDICAL SCICESEN CHAI RUIBO GUO JINGYUAN 1990, 0(1): 33-34.  Abstract ( 2018 )   Using sheep antihuman IgG serum labelled with fluorescein-iso-thiocyanate ,the human IgG in bloodstains could be found. The positive result could be acquired even with a few micro-fibrin torn from a 1-cm long sauge fiber stained with 2-ul of 1:100 diluted blood (1:200 diluted serum). That means the stains containing only one-thousandth micro gram of serum protain could be identified by this method. 127 human bloodstains within five years old and eleven bloodstains of eleven kinds of animals were tested and all the results were correct.The blind test of 90 bloodstains (human, 55, animai,35) got 88 correct conclusion (97.78%) and 2 misjudgement(2.22%) . The species identification of blood stain using the immunofluorescence techque is a nice me-theod with high sensitivety and specifificity. Related Articles | Metrics

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Detection of Semen Fingerprints by Solution Sodium α-Naphthyl Phosphate-Brentamine Fast Blue B QIAN HUANGGUI SHI SHAOPEI LING JINGKUN INSTITUTE OF FORENSIC SCIENCES;MINISTRY OF JUSTICE;PRC. 1990, 0(1): 35-36.  Abstract ( 2014 )   Acid phosphatase (AcP) in semen is very active and resistant to deneturation in old semen stains. When it reacts with solution Sodium α-Naphthyl Phosphate-Brentamine Fast Blue B, semen trace can be rapidly developed. Using this principle, we develop the latent semen fingerprints and find that this is an effective method. Related Articles | Metrics