You Were Asked to Take Charge of Household Registration, but You Caught a Serial Killer?

Jiang Chen, the captain of the criminal investigation detachment, was reborn and returned to 1996. Going back to the time when he was sent to the grassroots police station for "making mistakes", he became a household registration policeman who argued with uncles and aunts all day long. Until... "Jiang Chen, I asked you to check your household registration, how did you bring the serial murderer back?!