Is This What a Police Officer Should Do?

My name is Jiang Li, I am a policeman What is the daily work of an agent like? Catch thieves, catch prostitutes, catch gangsters But my job is a little different. Why am I the one who catches spies planted by the enemy? The prince wants me to be his bodyguard when he seizes the throne? The most outrageous thing is that someone wants me to go and see if someone rebels? ! Is this what a little detective like me is supposed to do? !