POLICING against and Characteristic of KOREAN Organize Crime: Using Big Data

This study is to analyze the characteristic of the Korean organized crime based on the general characteristic theory of organized crime. This study employs social network analysis to confirm what the characteristics of the Korean organized crime are and how they are linked with in personal, structural, and influential network. The study uses big data related to organized crime that can give implications to us to identify or understand the characteristic of organized crime in Korea. The research uses Web crawler on R project to collect texts related to organized crime from 1990 and 2018 on social media like major newspapers in Korea. This study collects 59,421 words by using Web crawler, but the raw data cannot be analyzed because of unstructured text. The study em-ploys text mining to process natural language and morphological analysis to extract adjectives and nouns. 54,759 are processed as natural languages and then 51,356 are extracted as meaningful and appropriate words for our research by using stemming analysis. The findings of the research illustrate that it is possible to present major characteristics of organized crime in Korea as follows: rational profit through crime, use of force or threat, orga-nized hierarchy continuing, restricted membership, and oversea activity and refuge. These are similar to the char-acteristics of foreign organized crime, but there are significant differences in size and operation. Although it is hard to compare to the size and operation of Mafia, Triads, and Yakuza, the Korean organized crime apparently has organizational structure, activity, and power like an international organized crime. It is important to be rec-ognized that the Korean organized crime has the potential possibility for developing into an international orga-nized crime.