After graduating the school, Han served at a people's security organ for years. He discovered and defused a lot of explosives, protecting the security and properties of people.

While defusing a time bomb dropped by the U.S. imperialists during the Fatherland Liberation War in October last year, he saved his comrades at the critical moment and died a heroic death.

Supreme leader Kim Jong Un projected Han as an excellent man and model of the people's security men in the era of Songun trained by the Workers' Party of Korea. He made sure that Han led an eternal life and his alma mater was named after him.

A renaming ceremony took place on Saturday.