Who is Police Inspector from Lost Names: Scenes from a Korean Boyhood and what is their importance?

Police Inspector spoke in Korean to the boy, ordering him to apologize. The Teacher of the Day shouted to the Inspector, who told him to shut up since he was an officer of the Higher Police. As he got up to lunge at the boy, the Inspector knocked the teacher to the ground with the bamboo sword. The Inspector took the boy home and insisted on talking to his father to warn him.