You, a Traffic Policeman, Are Responsible for a Criminal Investigation?

Traveled through a parallel world and became a police academy graduate. When Xu Lin received the assigned unit, he looked confused. He, a quasi-criminal police officer who graduated with perfect marks in criminal investigation, was assigned to the traffic police team. What does this mean? You won't let me do criminal investigation, right? That's easy to handle. I, the traffic police, can also take over criminal investigation work. On the first day of work, I caught 7 habitual thieves and 1 kidnapper and murderer. The next day, a B passer was arrested. On the third day, the main culprit of the shocking crime who had been hiding for 10 years was discovered. The fourth day... The captain of the traffic police brigade: "Ancestor, we are the traffic police, why do you send people to the criminal investigation department every day?" Director: "Who? Who asked Xu Lin to go to the traffic police brigade... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.