My question is about the Criminal Investigation Bureau of Tokyo Metropolitan Police. I've been surfing TMPD site but I can't find a detailed organization chart of this bureau (All I've found is this). I've also tried Wikipedia (even though it's not very reliable) and there isn't much information either (and nor it provides useful links).
What I need to know is related to the procedure in a case of murder. Is there a "chief" (I mean, as a Bureau Chief) and then subordinate detectives, or are all the 'detectives' officers (wearing their blue uniform)? Also, I would like to know if the officers would take witness to the police station to interrogate them. Or would they ask questions in the crime scene or later (looking for them in their houses or workplaces, for example)?
I would also like to know if there's a particular honorific to add to your superior/subordinate's name in the Police? Like -san and -kun, but specifically used in the Police Department.
Thank you very much in advance!