2.Characteristics of the Distance and Space Required for Knife Slashing Using a Motion Capture System.
Shu-Fang YUAN ; Shang-Xiao LI ; Chao-Peng YANG ; Bin NI ; Wen-Xia GUO ; Yi SHI ; Dong-Mei WANG ; Jia-Hui PAN ; Ming-Zhi WANG ; Wei-Ya HAO
Journal of Forensic Medicine 2022;38(6):702-708
OBJECTIVES:
To investigate the relationship between the perpetrator's sex, victim's position and slashing location as well as anthropometric parameters on distance and space required for slashing, to provide the theoretical basis for the judgment of whether the crime scene was consistent with the criminal activity space.
METHODS:
The kinematics data of 12 male and 12 female subjects slashing the neck of standing and supine mannequins as well as the chest of the standing mannequins with a kitchen knife were obtained by using a 3D motion capture system. The relationship between the perpetrator's sex-victim's position, the perpetrator's sex-slashing location, and anthropometric parameters and the distance and space required for the slashing were analyzed by two-factor repeated measures ANOVA and Pearson correlation analysis respectively.
RESULTS:
Compared with slashing the neck of supine mannequins, the distance (L) and normalized L (l) of slashing the neck of standing mannequins were greater, while vertical distance (LVR) and normalized LVR (lVR) of the knife side were smaller. Compared with slashing the neck of standing mannequins, the L and l slashing the chest of standing mannequins were greater, while LVR and lVR were smaller. Horizontal distance (LHR) and normalized LHR (lHR) of the knife side in males were greater than that in females. Height and arm length were positively correlated with L, LHR, and LVR when striking the standing mannequins.
CONCLUSIONS
When slashing the neck of supine or standing victims, the slashing distance is shorter and the slashing height is greater. Furthermore, the distance and space required for slashing are correlate with anthropometric parameters.
Humans
;
Male
;
Female
;
Motion Capture
;
Crime
;
Biomechanical Phenomena
3.Application Value and Research Progress of Human Microbiome in Sexual Assault Cases.
Yang LIU ; Min-Min XU ; Ya ZHANG ; Shi-Quan LIU ; Mei-Qing YUAN ; Zhen-Jun JIA
Journal of Forensic Medicine 2022;38(6):774-782
In recent years, sexual assault cases have been on the rise, seriously infringing the legitimate rights and interests of women and children, causing widespread concern in society. DNA evidence has become the key evidence to prove the facts in sexual assault cases, but lack of DNA evidence or only DNA evidence in some sexual assault cases leads to unclear facts and insufficient evidence. With the emergence of high-throughput sequencing technology and the development of bioinformatics and artificial intelligence, new progress has been made in the study of human microbiome. Researchers have begun to use human microbiome for difficult sexual assault cases indentification. This paper reviews the characteristics of human microbiome, and its application value in the inferences of the body fluid stain origin, the sexual assault method, the crime time, etc. In addition, the challenges faced by the application of the human microbiome in practical case handling, the solutions and future development potential are analyzed and prospected.
Child
;
Humans
;
Female
;
Artificial Intelligence
;
Forensic Medicine/methods*
;
Sex Offenses
;
DNA
;
Microbiota
;
Crime Victims
4.Forensic Application of Plant Evidence.
Zi Long ZHANG ; Wei Bo LIANG ; Hong Bing SUN ; Xin YANG ; Li Ying MA ; Zhi Xiang ZHENG
Journal of Forensic Medicine 2021;37(1):87-90
With the increasingly obvious role of plant evidence in case detection, forensic botany, which provides clues and evidence in crime scene investigation by using botanical research method has attracted growing attention. The common experimental techniques used in forensic botany are morphological examination, physical and chemical examination, molecular genetic examination, and so on. This paper briefly expounds the advantages and disadvantages of different test methods, summarizes the problems that need to be paid attention to in the application of forensic botany by arranging the related literatures and cases of forensic botanical research, in order to provide reference for scene investigation of cases.
Botany
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Crime
;
Forensic Medicine
;
Forensic Sciences
;
Plants
5.Research Progress on Touch DNA on Cartridge Cases in Forensic Field.
Journal of Forensic Medicine 2021;37(4):555-560
Cartridge cases are crucial physical evidence in gun-related crimes. The successful identification of the touch DNA on cartridge cases can help to screen the suspects and reconstruct the gun-related crime scene. With the improvement of DNA extraction methods and the sensitivity of amplification kit, forensic examiners are expected to obtain more valuable information by testing the touch DNA on cartridge cases. In practical cases, the touch DNA detection on cartridge cases often encounters with low DNA content degradation, mixing and the gunshot residual interference, which brings more challenges to DNA examination and identification. This article reviews forensic research of touch DNA on the cartridge cases from the aspects of factors affecting touch DNA on cartridge cases, advances in the extraction and amplification methods, and the practical applications in order to provide reference for forensic identification of touch DNA on the cartridge cases in real cases.
Crime
;
DNA/genetics*
;
DNA Fingerprinting
;
Forensic Genetics
;
Touch
6.Analysis of 123 Cases of Forensic Psychiatry Testimony of Individuals Suspected of Road Traffic Offences.
Shu Jian WANG ; Yu Zi ZHENG ; Yong HE ; Mei Ling YU ; Gang Qin LI ; Ze Qing HU
Journal of Forensic Medicine 2020;36(6):784-790
Objective To explore the characteristics of individuals with mental disorders suspected of road traffic offences and to find their differences from normal offenders, in order to regulate mental disorder patients' driving activities and prevent road traffic offences. Methods One hundred and twenty-three cases of forensic psychiatry testimony of individuals suspected of road traffic offences between 2014 and 2019 from the West China Forensic Center of Sichuan Province were collected. Fisher exact probability test was used to compare the differences between offenders with mental disorders and without mental disorders in terms of demographic characteristics, criminological characteristics, psychiatric characteristics and criminal responsibilities. Results There was no statistical significance in the differences of demographic characteristics, vehicles and kinds of alcohol between the two groups (P>0.05). The main type of road traffic related crimes committed by offenders with mental disorders was risky driving and were mainly evaluated as partial criminal responsibility, whereas most offenders without mental disorders committed crime of causing traffic casualties and all were evaluated as full criminal responsibility. There was statistical significance in the differences of the types of crime and the criminal responsibility rating between the two groups (P<0.05). Meanwhile, patients with mental disorders were characterized by long course of disease and irregular treatment, and individuals diagnosed as having mental disorders caused by psychoactive substances accounted for a large proportion. Conclusion There are differences in the characteristics of road traffic-related crimes between mental disorder patients and normal people. It is of great practical significance for reducing road traffic offences to evaluate whether the individuals with mental disorders are fit for driving.
Automobile Driving
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China/epidemiology*
;
Crime
;
Criminals
;
Forensic Psychiatry
;
Humans
;
Mental Disorders/epidemiology*
7.Review of Legal Codes Governing Administrative Death Investigations and Autopsy by Administrative Order
Korean Journal of Legal Medicine 2019;43(1):1-6
Under current law, there are two paths for death investigations: administrative and judicial. A proper death investigation system is essential to the establishment and maintenance of the human rights of those involved and to enhance the credibility of the judicial system as a source of ensuring the security of society. These objectives are accomplished through the accurate, professional, and systematic management of death investigations by qualified experts. The present study aims at reviewing and uncovering the limitations of the current legal codes governing administrative death investigations and autopsy by administrative order. The main problem being that no clear legal statements exist regarding the qualifications of persons responsible for administrative postmortem inspections and administrative autopsies; the problem is the same for any death related to crime. At the conclusion of this paper, the authors propose that legal codes regarding the scope of postmortem inspections or autopsies to determine the cause and manner of death should be clearly defined, and that the qualification standards for experts examining any desceased individual should be legislated.
Autopsy
;
Cadaver
;
Crime
;
Human Rights
;
Humans
;
Jurisprudence
8.Dietary Habits and Abdominal Pain-related Functional Gastrointestinal Disorders: A School-based, Cross-sectional Analysis in Greek Children and Adolescents
Giorgos CHOULIARAS ; Christina KONDYLI ; Ilias BOUZIOS ; Nick SPYROPOULOS ; George P CHROUSOS ; Eleftheria ROMA-GIANNIKOU
Journal of Neurogastroenterology and Motility 2019;25(1):113-122
BACKGROUND/AIMS: The abdominal pain-related functional gastrointestinal disorders (AP-FGIDs) affect a significant proportion of the pediatric population and consist 1 of the most frequent causes for seeking medical advice. In this study, we aimed to assess the relation of dietary habits with the likelihood of AP-FGIDs. METHODS: This was a school-based, cross-sectional study approved by the Greek Government authorities, after obtaining informed consent by the legal representatives of the children. Diagnoses of AP-FGIDs were based on the Greek official translation of the Rome III questionnaire. Demographic, socioeconomic and dietary data were collected through self-reporting or parent-reporting questionnaires. Associations between the probability of AP-FGIDs and dietary practices were assessed after adjusting for known confounders through a multiple logistic regression analysis. RESULTS: A total of 1365 children (147 AP-FGIDs and 1218 controls, 52.4% females, mean age: 12.8 ± 2.8 years) were included. Multiple regression analysis identified the following statistically significant confounders: victimization, the presence of a person with a severe health problem at home, female sex, engaging in limited physical exercise, and living in a single adult family. Subsequently, logistic regression, adjusted for the abovementioned confounders, showed that reduced fish and increased junk food consumption were related to a higher likelihood of AP-FGIDs. CONCLUSIONS: Children with AP-FGIDs report excessive junk-food and reduced fish intake compared to controls. Further studies are needed in order to clarify the nature of this observation.
Adolescent
;
Adult
;
Child
;
Crime Victims
;
Cross-Sectional Studies
;
Diagnosis
;
Exercise
;
Feeding Behavior
;
Female
;
Food Habits
;
Gastrointestinal Diseases
;
Humans
;
Informed Consent
;
Logistic Models
9.Development of Educational Content for Nurses to Prevent Safety Accidents of Hospitalized Children: Delphi Approach.
Child Health Nursing Research 2019;25(1):74-84
PURPOSE: The purpose of this study was to develop content for safety education to prevent hospital safety accidents among hospitalized children and to investigate the status of safety education performed by nurses. METHODS: First, the Delphi method was used, with 18 experts, to develop educational contents for preventing safety accidents. Second, an exploratory survey was performed of the actual status of safety education for preventing safety accidents among hospitalized children using a questionnaire developed based on the Delphi method. The participants of this study were 159 nurses with at least 6 months of work experience. RESULTS: The educational content developed through the Delphi method for preventing safety accidents among hospitalized children contained seven domains (falls, injury, electric shocks/burns, suffocation/aspiration, poisoning/abuse, kidnapping, medical devices) with 44 topics. The item mean of nurses'perceptions of the importance of child safety education was 4.18, and the actual performance score was 3.72, which was a statistically significant difference (t=11.58, p < .001). CONCLUSION: These seven comprehensive domains of accident prevention education for hospitalized children are expected to be useful for interventions to support the safety of hospitalized children.
Accident Prevention
;
Child
;
Child, Hospitalized*
;
Crime
;
Delphi Technique
;
Education
;
Electric Injuries
;
Humans
;
Methods
10.Factors associated with Bullying in College Students
Hyun Ju YANG ; Sang Hee KIM ; Young Eun JUNG ; Moon Doo KIM
Mood and Emotion 2019;17(2):57-62
BACKGROUND: School bullying is considered the most common type of bullying, and bullying related to stressful relationships is a significant risk factor for college students' depression and suicide. However, bullying is often overlooked in college students. Therefore, we investigated the prevalence of peer victimization in Korean college students and identified factors associated with bullying victimization.METHODS: From the Jeju area, 941 college students were included in this study. The students were divided into two groups according to whether they had experienced bullying. Sociodemographic and clinical characteristics, including depression (Beck Depression Inventory) and health-related conditions, were compared between groups.RESULTS: In total, 82 students (8.7%) reported being bullied by other students. Factors associated with bullying were low socioeconomic status (odds ratio [OR], 2.00; 95% confidence interval [CI], 1.10–3.64), obesity (OR, 2.20; 95% CI, 1.13–4.29), body dissatisfaction (OR, 3.92; 95% CI, 2.36–6.50), and depression (OR, 2.42; 95% CI, 1.53–3.85).CONCLUSION: Our findings might have important implications for development of strategies and interventions to prevent bullying among college students.
Bullying
;
Crime Victims
;
Depression
;
Humans
;
Obesity
;
Prevalence
;
Risk Factors
;
Social Class
;
Suicide

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