The drug trafficking situation in some regions of China remains incredibly severe, so much so that the armed police at highway checkpoints carry glaring long guns.
On the other side, drug dealers in the cities generally keep a low profile, like rats living underground, only startling people on rare occasions, and not appearing within the view of the general public.
Even for criminal investigation teams, if they don't develop special informants, it's common to have no drug-related cases to report when it's time to complete their tasks.
Therefore, the detectives from Changyang City were slightly excited upon hearing information about drug traffickers.