Suga Keibu

Suga is presented primarily as a senior police official operating through subordinates rather than as a field investigator with an extensively developed personal life.

His role requires discretion because Sametani's actual assignment is not immediately apparent to the other characters investigating his activities.

Suga is a police inspector with command responsibility and experience supervising sensitive investigations.

His position allows him to assign officers to covert work and manage investigations that may not correspond openly with the officers' apparent duties.

Suga enters the story through the investigation of Sametani's activities. The apparent circumstances surrounding Sametani initially leave Conan and Kogorou without a complete understanding of what their former police contact had been investigating.

It emerges that Sametani was conducting covert work under Suga through the Metropolitan Police Department's reform-planning office, helping explain why his movements and investigation did not correspond neatly with his apparent assignment.

This hidden police activity becomes another layer in a case already involving Nagano investigators and Public Security personnel.

Kouji Sametani works under Suga while conducting the covert investigation that ultimately draws him into the events of One-eyed Flashback.

Kogorou Mouri becomes indirectly connected to Suga through his investigation into what Sametani had been doing before arranging their meeting.