According to the online literature knowledge I've learned, you took the train out yesterday and were called to the office by the station police station. It might be because you violated some rules at the station or encountered some kind of situation. In the novel, there was an petitioner who applied to the court because he had encountered a similar situation and wanted to protect his rights through legal means. I can't give a definite answer based on the plot and background of the novel. If you have more questions about the plot of the novel, please feel free to ask me.