I'm looking for a specific detective/police drama I saw few years ago. Things I remember:

- main character is a female with short hair. she's in a police task force (??) surrounded by guys (I think she was moved there) and ppl sometimes don't take her seriously cuz she's a woman. she's serious and capable
- there's a criminal (??) who's interested in her; he's in some kind of prison and they see each other through a pane of glass? he gives her few clues about crimes happening (I think there's also something about handkerchief but I'm not sure) he's also taking about weird shit (ofc he does)
- there's an episode with a bomb threat
- there's an episode where guy takes hostages in a 2 floor building or something? and she helps snipers to take him down?

Found it at last! 'Koshonin' Topic for close
Great! The description seems interesting.
Sounds interesting! Glad that you found it anyway :)