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이윤제(Lee, Yun-Je) 한국형사법학회 2012 형사법연구 Vol.24 No.2
A search warrant allows police to perform acts that would otherwise be trespasses. It imposes no legal duty on people to assist the police in their search. The general rule is that while such other person may not hinder the police such a person is under no legal obligation to help the police. That was the case in South Korea too. In 2011, however, Korea Criminal Procedure was amended to include the duty to produce digital evidence. Nonetheless, the law enforcement demand to amend additionally the law to expand the scope of the duty to assist digital search warrant execution resulting in including duty to preserve digital evidence and duty to assist warrant execution. Some scholars and judges have expressed different opinion over the additional revision. While we should pay attention to human rights and due process of law, it is also wise to notice the traditional rule is insufficiently sophisticated to cope fairly with some circumstances in which legitimate criminal investigation processes encounter contemporary information technology. We should consider the need to ensure a proper balance between the interests of law enforcement and respect for fundamental human rights. It is true that many developed countries including Council of Europe Convention on Cybercrime(CCC) are introducing this kind of duties regarding the digital evidence. For example, CCC Art. 16(1) prescribes as follows: "Each Party shall adopt such legislative and other measures as may be necessary to enable its competent authorities to order or similarly obtain the expeditious preservation of specified computer data, including traffic data, that has been stored by means of a computer system, in particular where there are grounds to believe that the computer data is particularly vulnerable to loss or modification". I have compared a few legislative examples of other countries and reached the conclusion that it is inevitable to introduce the preservation order into Korea Criminal procedure at least with respect of digital evidence because the preservation order is just a temporary order for exigent situation and less intrusive than production order which is already introduced.
동결융해에 따른 투수성 폴리머 콘크리트의 인장강도와 동탄성계수
이윤제(Lee,Yunje),안재훈(Ahn,Jaehun),오영탁(Oh,Yungtak),이재건(Lee,Jaegeon) 한국방재학회 2021 한국방재학회논문집 Vol.21 No.6
도시화에 따른 불투수지역의 확대는 물순환에 악영향을 발생시킨다. 이러한 문제를 해결하기 위한 방안으로 저영향개발 기법의 적용이 확대되고 있는 추세이다. 도시 수환경 개선을 위한 저영향개발 기법의 요소 기술 중 하나인 투수성 포장은 현재 국내외에서 적용 사례가 빠른 속도로 증가하고 있다. 본 연구에서는 투수성 폴리머 콘크리트 포장재의 동결융해 전⋅후의 인장강도;동탄성계수를 평가하였다. 투수성 폴리머 콘크리트의 건전도를 알아보기 위한 수단으로 인장강도 시험을수행하였으며;인장강도는 0.66~0.96 MPa;인장강도비는 72~83% 정도의 값을 가지는 것으로 나타났다. 동결융해 온도 사이클에 따른 동탄성계수를 알아보기 위해 초음파 펄스 속도를 측정하였으며;300회의 동결융해 사이클이 진행됨에 따라 동탄성계수는 초기 값의 77~85% 수준으로 떨어지는 것으로 분석되었다. 투수성 포장재의 동결융해 시험에 대한 기준은 아직 정립된 바없으며;국내 기후변화를 고려한 시험방법의 개발을 통해 동결융해 저항성에 대한 시험기준을 개발하여야 할 것으로 판단된다. The expansion of impervious areas owing to urbanization has adverse effects on water circulation. The application of low-impact development techniques to solve these problems is gaining popularity. Among others;Permeable pavements are the most widely employed low-impact development techniques. In this study;the dynamic modulus and tensile strength of pervious polymer concrete pavement were evaluated before and after freezing-thawing cycles. A tensile strength test;performed to check the soundness of the pervious polymer concrete;yielded a tensile strength and tensile strength ratio of 0.66 to 0.96 MPa;and 72 to 83%;respectively. The ultrasonic pulse velocity was measured to determine the dynamic modulus according to the freezing-thawing cycles. When 300 freezing-thawing cycles were performed;the dynamic modulus was analyzed to drop to a level of 77~85% of the initial value. The standards for freezing and thawing tests of pervious concrete have not yet been established. It is necessary to develop test standards for freezing-thawing resistance of pervious concretes considering climate change.