• 한국인터넷방송통신학회논문지
• /
• 제14권6호
• /
• pp.33-39
• /
• 2014

클라우드 컴퓨팅 서비스의 확산으로 범죄수사를 위한 증거수집의 관점에서 불확실성으로 인한 다양한 실무적이고 법적인 문제가 제기되고 있다. 이 논문은 클라우드 환경에 대한 일반적인 수사상의 논점을 개관하고, 관할과 국제공조를 비롯한 문제점을 진단한다. 실무적으로 직접적으로 수사관이 접속하는 경우와 서비스제공자의 협조를 받는 경우의 장단점을 비교하여 실무적 개선방안을 논의하고 이에 따른 관할의 중복과 서비스 약정 및 포렌식적으로 무결한 데이터 수집 등 법률적 쟁점을 정리한다.

• 대한수사과학회지
• /
• 제1권1호
• /
• pp.72-87
• /
• 2006

Accidents and terrorist acts that utilize explosives have a great influence on society and thus require a prompt investigation for the arrest of the culprit. However, such investigations are often met with difficulties due to the vastness of the crime scene, restrictions on approaching the scene, fragility of the evidence, complexity of investigation, and the lack of expertise. In spite of such facts, scientific investigation regarding explosives have not been widely studied in Korea. Therefore, the focus of this research primarily concerns the effective scientific investigation methods in cases of accidents that involve chemical explosives. Although the a systematic investigation method is at the heart of scientific investigation in cases of explosive accidents, it is only at its rudimentary stage. Therefore, in this research, a systematic investigation method is put forth for the 'scene investigation, the documentation of the scene, and the collection and processing of evidence. Further, I have set forth a 'scene investigation check list' the ensure a thorough scene investigation and to promote an exhaustive evidence collection that would guarantee the admissibility of such evidence in court. The above efforts were aimed at simplifying the currently complicated investigation system. 1) In the future, a guidebook that can be generally applied to accidents involving explosives in Korea ught to be produced, a continual systematic education and integrated training excises for investigators ought to be established, laws that require additives in explosives ought to be instituted so that the type, components, and source of explosives can be identified, and lastly, a database that contain information on former explosion accidents, trends, and techniques of criminal activities that involve explosion accidents should be compiled.

• 융합보안논문지
• /
• 제17권3호
• /
• pp.15-20
• /
• 2017

클라우드 컴퓨팅은 인터넷이 가능한 환경에서 다양한 단말을 통해 IT 자원(소프트웨어, 스토리지, 서버, 네트워크)을 이용할 수 있는 서비스이다. 편리성과 효율성, 비용 절감의 이유로 최근 이용률이 급증하였다. 하지만 정보의 집중화로 인해 범죄의 표적이 되거나 클라우드 서비스를 악용하는 범죄가 발생하였다. 기존 디지털 포렌식 절차는 개인 단말기를 대상으로 하는 수사에 적합하다. 본 논문은 기존 디지털 포렌식 수사 절차로 클라우드 환경을 조사할 경우 발생하는 취약점들을 분석하여 새로운 수사 모델을 제안하였다. 제안된 수사 모델은 계정정보를 획득할 수 있는 방법을 추가하였으며, 공공 클라우드와 사설클라우드를 아울러 적용할 수 있다. 또한, 클라우드 서비스는 쉽게 접근이 가능하여 디지털 증거 인멸 가능성이 높기에 계정 접근 차단 단계를 추가함으로써 수사 모델을 보강하였다.

• 대한수사과학회지
• /
• 제1권1호
• /
• pp.45-53
• /
• 2006

The purposes of fire investigation are to identify and analyze the causes of fire and, using the results in promoting fire fighting policies, ultimately to prevent fires caused by similar causes and to protect people's life and properties from fire. However, although the patterns of fire are getting more diverse and complicated with the rapid development of industry, complicated with the rapid development of industry, fire fighting organizations are continuing traditional superficial fire investigation without operating a fire investigation department for the reason of insufficient manpower, equipment and budget, losing public confidence. Thus, the present study purposed to propose plans to improve the technicality of fire investigation and win public confidence in fire investigation. First, the technicality of fire investigation should be improved by operating a department and personnel exclusively for fire investigation. Second, fire investigation should be more scientific and precise using high tech fire investigation equipment. Lastly, responsible fire fighting administration should be realized through statistical analysis of the causes of fire and computerization. The results of this study are expected to contribute to the safety and security of our society.

• 정보보호학회논문지
• /
• 제24권1호
• /
• pp.135-144
• /
• 2014

디지털 포렌식 조사를 회피하기 위한 안티포렌식이 발전하고 있는 가운데, 안티포렌식 행위를 찾아내기 위한 포렌식 방법들 또한 다각도로 연구되고 있다. 사용자 행위분석을 위한 여러 요소 중 응용프로그램의 아이콘 정보를 저장하고 있는 IconCache.db 파일은 디지털 포렌식 조사를 위한 의미 있는 정보들을 제공하고 있다. 본 논문은 IconCache.db 파일의 특성을 알아보고 안티포렌식에 대응할 수 있는 활용방안을 제시한다.

• 대한약학회:학술대회논문집
• /
• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
• /
• pp.279.2-280
• /
• 2003

A simple and accurate reverse-phase high performance liquid chromatography (HPLC) coupled with photodiode array was developed for the determination of dextromethorphan(DM) and its metabolite dextrorphan(DX) in human urine. Chromatographic separation was accomplished on a cyano analytical column at 220 nm using a mobile phase containing 25 mM triethylammonium phosphate buffer(PH 3.0) in a 0-70％ ACN gradient and triazolam(TZ) was used as internal standard(I.S). (omitted)

• 융합보안논문지
• /
• 제7권2호
• /
• pp.91-100
• /
• 2007

포렌식 수사에 있어서 많은 포렌식 도구들이 수사에 사용되고 있지만 기존의 포렌식 도구는 일반 수사관이 사용하기에 불편하다는 단점이 있다. 정보 유출과 관련하여 긴급히 증거를 수집해야 할 상황에서 데이터를 수집해 증거로 활용할 수 있게 만들 때까지는 시간이 걸린다. 따라서 일반 수사관이 간단한 클릭만으로도 증거를 수집하고 또한 심층 수사로 갈 것인지를 판별할 수 있는 사전 조사격의 포렌식 도구가 필요하다. 따라서 본 고에서는 활성 시스템에서 수집할 수 있는 증거에 대해 알아보고 사전 조사에 사용할 수 있고 일반 수사관이 다루기 쉬운 포렌식툴을 설계 및 구현하고자 한다.

• 대한임상검사과학회지
• /
• 제41권2호
• /
• pp.76-82
• /
• 2009

It would be one of the most important tests that determination of semen in crime scene as a matter of significant evidences. Recently, it has been developed for the identification of semen in forensic specimens which was used simply, easily and reproductively. In this study, Prostate-Specific-Antigen (PSA) Rapid Test kit was evaluated for the forensic identification of semen and compared with one step semen inspection forensic rapid test kit. The sensitivity and specificity of the rapid PSA kit were examined in addition to the stability of PSA. The positive band of rapid PSA kit shown even with 1,000,000-fold diluted semen, which was at least 100 timed higher than qualitative one step semen inspection forensic rapid test kit. PSA was detected in urine from normal male adult, however, it was not detected in urine from young boys and female body fluids. It was shown that PSA was very stable to resist boiling for 20 minutes and the effect of bacteria. In crime scene investigation, rapid PSA kit is expected to help to identify semen easily in the evidences.

• Journal of Information Science Theory and Practice
• /
• 제11권4호
• /
• pp.14-39
• /
• 2023

Cybercrime is a significant threat to Internet users, involving crimes committed using computers or computer networks. The landscape of cyberspace presents a complex terrain, making the task of tracing the origins of sensitive data a formidable and often elusive endeavor. However, tracing the source of sensitive data in online cyberspace is critically challenging, and detecting cyber-criminals on the other hand remains a time-consuming process, especially in social networks. Cyber-criminals target individuals for financial gain or to cause harm to their assets, resulting in the loss or theft of millions of user data over the past few decades. Forensic professionals play a vital role in conducting successful investigations and acquiring legally acceptable evidence admissible in court proceedings using modern techniques. This study aims to provide an overview of forensic investigation methods for extracting digital evidence from computer systems and mobile devices to combat persistent cybercrime. It also discusses current cybercrime issues and mitigation procedures.

• 한국식품과학회지
• /
• 제36권4호
• /
• pp.527-530
• /
• 2004

Adulteration of sesame oil using near infrared (NIR) spectroscopy was determined. Vegetable oils including sesame oil were scanned on the NIR spectrophotometer at 400-2500 nm. Partial least square (PLS) was applied on the standardized full NIR spectral data. Discriminant analysis with PLS is adequate for determination of sesame oil adulteration, except with decreasing adulteration rate. Designing of quality control system, which uses NIR spectroscopy to measure adulteration level of sesame oil is thus possible, although more work is required to give acceptable accuracy level.