"All of the license plates issued from this city starts with 'CA', but this vehicle's starts with 'CD'."
"What's wrong with it being 'CD'?" The young police officer was still confused.
Su Yu looked at him and explained slowly, "'CD' is for the army vehicles, and only military personnel can use it."
"That would still be normal... Some military officers own private vehicles that are not a green Jeep, and there are a lot of them undergoing medical care at South Side. There's nothing suspicious about that."
Su Yu felt a bit frustrated as his expression turned cold, and he explained himself one last time, "Don't speak about something you don't know... Military personnel do own private vehicles but they will never use a Japan-made vehicle, that's a common rule that everyone in the army knows about."
The young police officer finally understood.