Honestly speaking,
Han Dong was caught somewhat off guard with this incident at the Municipal Security Division.
He deliberately terrified the lawbreakers in the underground cell. His objective, of course, was to indirectly affirm that he is the 'Returner'.
But he didn't expect to run into the Black Knight who escorted him yesterday.
This man is a senior official.
Having successfully graduated from the National Royal Academy of Knights and selected into the Black Rose Knight Squad, one of the 'Twelve Knight Regiments', his strength and status are far superior to Han Dong who is just an Apprentice Knight. He's even higher than the local sheriff.
In the face of Barton Fogs' interrogations,
The 'Faceless One's Skull' information might be exposed, depending on Han Dong's response.
...
The subsequent dialogue didn't take place in the frenzied, dirty streets.
Once again, he rode on the mechanical black horse,
Accompanying Knight Barton to the neighboring Ghana Civilian Area.
