In order to prevent criminals serving prison sentences from escaping, North Korean law stipulates that once a prisoner escapes, it will be plagued by three generations. For those who are regarded as “national traitors”, the “Northerners” are even more severe. One person flees and the whole family is punished.
However, according to statistics, as of October 2016, the number of North Koreans who have settled in South Korea has approached 30,000. If the North Korean authorities impose a “implemented family system” penalty, the number of people who are implicated in the “family system” will be as many as Hundreds of thousands of people, so with the increase in the number of North Koreans, it is becoming more and more difficult for North Korea to implement the “continuous system” punishment measures.