This product contains:

A part of Police station with corridor, interview room, line-up room and monitoring rooms.
Materials for FireFly and SuperFly (Poser), and Nvidia Iray (for Daz Studio).
Light set for Firefly engine (Poser).

You can move/hide walls, open/close doors and move chairs and table in interview room.
I had some problems with that (in)famous one-way mirror, so I did a little work-around:
materials for glass/mirror are also included for each version. When you put camera in
monitoring room, use 'mirror to glass' material to see into interview/line-up room.
When you place camera into line-up or interview room, use 'glass to mirror' material
and you'll get a mirror.