• Korean Security Journal
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• no.8
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• pp.379-407
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• 2004

The cyber-crime is one of the results occurring from the increased dependency toward information-telecommunication devices. Currently, the Korean National Police Agency and many other related law enforcement agencies have made efforts to respond against the cyber-crimes. However, the number of cyber-crime is increasing steadily. The worse problem is that the arresting rate for the cyber-crime has been decreased than before. The reasons of decreasing arresting rate come from many different kinds of cyber-crime methods with the developed computer and network technology, Also, the easy concealment of the cyber-crime by the violater and the difficulty of specification against the data objected to search and seizure make the crackdown difficult. The other difficulties come from the lack of professionally trained investigators, the lack of high-technological investigation devices, and the failure of the technology development for the search and seizure of evidences because of the budget deficit. That is to say, these phenomenon show the comprehensive problem of the cyber-police system. Accordingly, to respond against newly changed cyber-crime activities and to investigate effectively, the cyber-police has to take consideration into the professional reorganization of the cyber-police, the development of the investigation technology, and the adjustment of current cyber-crime laws. Most importantly, the cyber-police needs the high-technological investigation devices, the development of the investigation methods, and the training for the professional human resources with the enough budget support.J

• Journal of the Institute of Convergence Signal Processing
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• v.23 no.1
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• pp.37-43
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• 2022

Drones, one of the 4th industrial technologies that are expanding from military use to industrial use, are being actively used in the search missions of the National Police Agency and finding missing persons, thereby reducing interest in a wide area and the input of large-scale search personnel. However, legal review of police drone operation is continuously required, and the importance of advanced system for related operations and analysis of captured images in connection with search techniques is increasing at the same time. In this study, in order to facilitate recording, preservation, and monitoring in the concept of precise search and monitoring, it is possible to achieve high efficiency and secure golden time when precise search is performed by constructing spatial information based on photo rather than image data-based search. Therefore, we intend to propose a spatial information construction technique that reduces the resulting data volume by adjusting the unnecessary spatial information completion rate according to the size of the subject. Through this, the scope of use of drone search missions for large-scale areas is advanced and it is intended to be used as basic data for building a drone operation manual for police searches.

• Journal of the Korean Society for Railway
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• v.9 no.4 s.35
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• pp.425-431
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• 2006

There are two kinds of police authorities in Korean railway industry, that is, the Special Judicial Police and the Local Subway Police. The existence of two separate entities for common objective of railway security has given rise to problems including inefficiency in performance and lack of customers-focused police service and synergic effects. The purpose of this study is to search for solutions to rail crimes that allows for rapid spatial movements since they take place on fast moving trains.

• The Journal of the Korea Contents Association
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• v.17 no.7
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• pp.408-415
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• 2017

The aim of this study is to discuss some of the prominent ideas which use drone for police works. Focusing on the extent of the utility and practicability of using drone in policing, this paper attempts to address both positive and negative aspects in conjunction with related statutes and regulations. This study uses a qualitative case study approach and offers three practical implications including: (1) enacting a law that covers using drones in policing, (2) hiring technical professionals or training police officers to prevent illegal drones and to implement a variety of policing strategies, and (3) collecting data and information on crime and criminals and then developing the best way to respond to these problems.

• Convergence Security Journal
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• v.12 no.2
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• pp.71-86
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• 2012

In the twenty-first century, it tends to deepen rich-poor gap and differences related to geographic location because of characteristic of polarization and diversification. Various social conflict that appear in the twenty-first century preclude independent effort and active of police from responding various public order problem of community The most important thing is widespread participation and cooperation of inhabitant and community in order to cope with various social change like localization, decentralization and democratization. Above all things, as human rights guardian in order to gain nation's trust, the police should induce dynamic change to desirable police which is wanted by nation in the organization. To achieve this, the police must overcome many negative customs and obstacles remaining organization despite endeavor of the police. In this manuscript, for this discussion, we search simply historical process of development, seek conception of the disadvantaged in regard to police duty, analyse the reality of human rights violation of the disadvantaged in execution of police duty through statistics and case study, find the problem and seek proper solution through improvement of the police legislative system.

• Journal of Digital Convergence
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• v.10 no.10
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• pp.1-11
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• 2012

In case of the crime occurrence preliminary investigation is very important. Police perform on-site first responders throuth the First Responders Manual and 112 information system. But recently the failure cases of preliminary investigation happened. Social criticism was castrated for the police that roundup succeeded but failed to protect the victims of crime. Avoiding these accidents, improvement of preliminary investigation is required. Accordingly local police personnel system improvement, improvement of reporting systems, Integration of 112 information and 119 information, improvement of seizure search regulations, victim care, crime response exercises reinforcement is required for the protection of criminal victims in preliminary investigation.

• Journal of Information Processing Systems
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• v.16 no.3
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• pp.639-647
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• 2020

In the vibration target localization algorithms based on time difference of arrival (TDOA), Fang algorithm is often used in practice because of its simple calculation. However, when the delay estimation error is large, the localization equation of Fang algorithm has no solution. In order to solve this problem, one dimensional search location algorithm based on TDOA is proposed in this paper. The concept of search is introduced in the algorithm. The distance d1 between any single sensor and the vibration target is considered as a search variable. The vibration target location is searched by changing the value of d1 in the two-dimensional plane. The experiment results show that the proposed algorithm is superior to traditional methods in localization accuracy.

• Korean Security Journal
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• no.41
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• pp.357-386
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• 2014

The Purpose of this study is to search for ways to improve the police-related emergency reporting service through the analysis of its actual condition - focusing 112 emergency reporting & 122 emergency reporting. For this purpose, the main data related to police-related emergency reporting required for inspection of the administration conducted by the National Assembly in 2013 is utilized. The actual condition of the police-related emergency reporting service is examined in 3 aspects - the number of reported cases by reporting type, the number of police response, and the average arrival time. The principal analysis results of the actual condition revealed that 112 emergency reporting is increasing and 122 emergency reporting oscillates between increases and decreases in the total number of reported cases, the number of non-emergency reporting is increasing in both 112 and 122 reported cases, the number of prank call is high in 122 reported cases, the rate of other agency transmit($122{\rightarrow}112$) is higher than 12% in 122 reported cases, and the number of police response and the average arrival time are decreasing in 112 reported cases. To improve the police-related emergency reporting, based on the above actual condition, the followings are required: to operate dualistic police-related response; to publicize a police-related reporting service; to take stern measures against false report; to make continuous improvement of the police-related emergency reporting system.

• 한국해양학회지
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• v.26 no.4
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• pp.295-303
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• 1991

Multi-spectral analyses of excitation and emission fluorescence was applied to spilled crude oils in characterization of their specific fluorescence patterns which is called oil fingerprints. In the present study, oil fingerprints of 33 crude, 4 fuel and 2 other oils were analyzed to establish data base library search system. Cluster analysis showed that crude oils could be classified into two large groups according to their fluorescence characteristics. In simulated experiments, all the spilled sources was identifiable by the present library search system. In the natural environment this system could identify the exact source of weathered crude oil slicks upton 10 days. The present study shows that the fluorescence fingerprinting method with the library search system is reliable and superior to toutine GC/HPLC analyses in identification of the source of weathered spilled oils in the marine environment.

• Journal of the Korean Institute of Navigation
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• v.18 no.4
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• pp.119-136
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• 1994

In Korea, the System of search and rescue in water have came into force on the basis of the Korea Life Saving and Rescue Act. 1961. But It's a premodern administration law which is not fit for an international system of the search and rescue and become disconnected with reality in Korea. Recently the marine casualties occur frequently in Korea coastal area, therefore, we need to amend the 1961 Act. The amendment which is carried out by the Korea Maritime Police Agency is a provision to receive International convention(SAR, 1979). The amendment of this Act will give a epoch-making change to Korean policy of the life-saving and rescue, security to marine safety and contribution to National positon on system of "Search and Rescue". In this thesis, I propose a development scheme to be conductive to original task on "Search and Rescue" of International Convention in Korea Life Saving and Rescue Act(Amendment, 1994).t(Amendment, 1994).