Why did the drunk driving detected by Lanzhou Yantan Traffic Police Brigade be handled by Donggang Traffic Police Brigade?

Because the ID card information belongs to the jurisdiction of Donggang Traffic Police Brigade. If you are caught drunk driving at Yantan Traffic Police Brigade in Lanzhou City, but because your ID card information is located within the jurisdiction of Donggang Traffic Police Brigade, then according to relevant regulations, Yantan Traffic Police Brigade should transfer your case to Donggang Traffic Police Brigade deal with. This is for the sake of unified law enforcement and coordinated management to ensure that traffic safety and the maintenance of public order can be carried out smoothly. Therefore, even if you are investigated in one location, the final handling of the case may be transferred to the traffic police brigade in another jurisdiction.