• Title/Summary/Keyword: forensic science

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Assessing the forensic knowledge of 119 emergency medical technicians (119 구급대원의 법의학 지식에 대한 연구)

  • Lee, Hee-Young;Moon, Jun-Dong
    • The Korean Journal of Emergency Medical Services
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    • v.23 no.2
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    • pp.75-86
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    • 2019
  • Purpose: It is crucial that 119 emergency medical technician (EMT) have adequate knowledge regarding forensic science. This study aimed to assess the forensic knowledge of EMTs in the Republic of Korea. Methods: This study was conducted on EMTs of five fire stations in D metropolitan city between August 6 and August 13, 2018. A questionnaire consisting of items on crime-related incident recognition (i.e., mechanical asphyxiation, trauma, sex crimes, and child abuse), forensic evidence management (i.e., evidence collection, preservation, and recording) was administered to the participants. Finally, 119 questionnaires were analyzed. Results: The ratio of correct answers for crime-related incidents recognition was 55.82%, which was lower than that for forensic evidence management(84.5%). In particular, the scores for the type of neck compression(16.5%) and wound assessment(44.0%) were low. The percentage of correct answers for forensic evidence management was 78.4% for evidence collection, 84.4% for evidence preservation, and 90.6% for evidence recording. Previous forensic education experience was not a significant variable. Conclusion: Specific and practical forensic science education on perception of crime-related incident, including asphyxia and wound identification, and forensic evidence collection is needed.

Simultaneous determination of nalbuphine and methamphetamine in drug abuser's urine

  • Park, Mee-Jung;Choi, Wha-Kyung;Choi, Sang-Kil;Son, Haeng-Ja;Lim, Mi-Ae;Chung, Hee-Sun
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.275.1-275.1
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    • 2003
  • Because people who take more than two drugs have increases, a simple and sensitive method for the simultaneous analysis of amphetamine, methamphetamine and nalbuphine in urine was developed. After alkalinization of the urine samples with 6 N-NaOH, the analytes were extracted using ethyl acetate, derivatized with MSTFA : TSIM : TMCS (= 100 : 2 : 5) prior to gas chromatography-mass spectrometry(GC-MS) analysis with selected ion monitoring. (omitted)

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Effectiveness of interference filter for photoluminescence observations: comparison with absorption filters

  • Lee, Wonyoung;Kim, Duke;Yu, Jeseol
    • Analytical Science and Technology
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    • v.34 no.5
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    • pp.225-230
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    • 2021
  • Currently, most photoluminescence reagents used in forensic science have short stokes shift, making it difficult to observe strong photoluminescence due to scattering light from forensic light sources when using filters that are not shieldable. However interference filters can be observed near monochromatic light, making them a better alternative to absorption filters. To verify practical applicability of interference filters, interference filters and three other types of previously frequently used absorption filters were observed using a variety of light source products, and transmission light was cross-compared. Interference filters have a lower slope value than absorption filters, and selectively show only the photoluminescence of reagents, regardless of the type of product from the forensic light source. In addition, tilting the angle of the filter surface for observation lowered the λcut-on, which could replace various types of absorption filters with a single interference filter.

The Awareness and Performance of the Forensic Nursing Role in Emergency Departments (응급실 간호사의 법의간호학적 역할의 인지와 수행정도)

  • Han, Mi-Hyun;Hong, Hae-Sook
    • Journal of Korean Biological Nursing Science
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    • v.14 no.4
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    • pp.291-299
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    • 2012
  • Purpose: This study attempted to measure the awareness and performance of the forensic nursing role among the emergency department (ED) nurses to emphasize the presence of forensic nurses in ED and suggest encouraging essential forensic nursing education. Methods: A quantitative descriptive survey using a questionnaire was carried out to the nurses, who had a minimum of 6 months experience in the ED. This study was conducted at 7 hospitals in the Republic of Korea. Results: A total of 124 nurses were enrolled. As to the Awareness of the forensic nursing role, all the core data obtained an average of 3.39 points out of 4 points, and the documentation category was the highest score of 3.57. For the performance of the forensic nursing role, all the core data obtained an average of 2.50 points out of 4 points, and a documentation category acquired the highest score of 2.91. There is a significant correlation of (r=.452, p<.001) the awareness and performance of the forensic nursing role. Conclusion: Currently, the awareness regarding the forensic nursing role is low level. Therefore, the performance of forensic nursing role has also become low level. Consequently, forensic nursing education is essential for ED nurses to preserve evidence accurately.

Practical and Legal Challenges of Cloud Investigations (클라우드 환경에서 수사 실무와 법적 과제)

  • James, Joshua I.;Jang, Yunsik
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.14 no.6
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    • pp.33-39
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    • 2014
  • An area presenting new opportunities for both legitimate business, as well as criminal organizations, is Cloud computing. This work gives a strong background in current digital forensic science, as well as a basic understanding of the goal of Law Enforcement when conducting digital forensic investigations. These concepts are then applied to digital forensic investigation of cloud environments in both theory and practice, and supplemented with current literature on the subject. Finally, legal challenges with digital forensic investigations in cloud environments are discussed.

Application study of PCR additives to improve the split peaks in direct PCR

  • Kim, Joo-Young;Kim, Da-Hye;Park, Hyun-Chul;Jung, Ju Yeon;Jin, Gang-Nam;Hwang, In-Kwan;Kang, Pil-Won
    • Analytical Science and Technology
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    • v.32 no.4
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    • pp.155-162
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    • 2019
  • Analysis techniques using DNA profiling are widely used in various fields including forensic science and new technologies such as the Direct PCR amplification method are being developed continuously in order to acquire the DNA profiles efficiently. However, it has a limits such as non-specific amplification according to the quality of crime scene evidence samples. Especially, split peaks caused by excessive DNA samples are one of the important factors that could cause the debate to allow researchers to interpret the DNA profile results. In this study, we confirmed the occurrence rate of split peaks in each STR (short tandem repeats) locus of the $GlobalFiler^{TM}$ kit and investigated the possibility of improving the split peaks using several PCR additives such as DMSO (dimethylsulfoxide), $MgCl_2$, Betaine and Tween-20. As a result, we could make three groups according to the occurrence rate of split peaks in Direct PCR and it was confirmed that the ratio of split peaks could be reduced by DMSO (87.4 %), $MgCl_2$ (84.5 %) and Betaine (86.1 %), respectively. These results indicate that PCR additives such as DMSO, $MgCl_2$ and Betaine can be improve the split peaks in Direct PCR and thereby facilitate subsequently a successful DNA profile results.

A Study on Educational Requirement of Forensic Medicine for Biomedical Laboratory Science (임상병리학과 학생들의 법의학 교육의 요구도에 관한 연구)

  • Jung, Se-Hoon
    • Korean Journal of Clinical Laboratory Science
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    • v.47 no.3
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    • pp.153-158
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    • 2015
  • In order to find out a method to improve awareness of biomedical laboratory science about forensic medicine education and suggest a plan for invigoration, we carried out a survey targeting 100 students of biomedical laboratory science of Daegu Health College in Daegu region and implemented their awareness and requirement forensic medicine subject, which suggested very high awareness of most of the students about forensic medicine as a result. Out of 100 respondents, in the result of survey for students' awareness of forensic medicine, 94 (94%) answered that they were aware of it, We could find that they have high expectation from forensic medicine, and current biomedical laboratory science showed very high awareness and requirement for forensic medicine education. Therefore, rather than focusing only on core courses required for medical technologist, it is necessary to set up a program to introduce forensic subjects for expansion of professional areas and activation which can promote employment of medical technologists.