police station

Civilians enter the station by the front doors. There is a tall counter topped by bullet-proof glass and little windows to talk through. There are clerks and a uniformed officer (all NPCs) there to handle questions, reports, requests to speak to an officer, etc.
Cops use the back entrance off the private parking lot for cops only. The double doors open to a long hallway with offices and conference rooms on both sides. Near the door, is a glassed-in room where the "desk sergeant" (NPC) sits. Here characters check in/out with him for keys, evidence, prisoners, etc. Next to this window is a counter and mail slots for each officer or employee. This is where memos, paychecks, etc. are picked up.
Down that wide hallway is a cluster of offices and a reception area. Captain Jeremy Cage (NPC or Council played), his secretary, Louise (NPC) and other NPC ranking officers hang out here. There is an intersecting hallway that leads into the depths of the station. At the end of that hallway and around a corner is the RPIT Squad room.
RPIT is a big room with desks scattered around the middle of it. Regular uniform cops use these desks. Around the outside walls, desks are divided by cubicle walls. This is where the detectives sit. The cubicles are completely open to the center of the room.
There are conference rooms, offices, cells, secured evidence room, records room, etc. scattered around the labyrinth. The Crime Lab is also "hidden" away in there but it has it's own outside entrance, though a hallway connects it to the other offices.