Dizzard: I've gotten past the part you're talking about.
If you're asking how to get somebody else upstairs, you need to send bennet up first and then ask to bring along ray. (for questioning)
Then when you have bennet and ray upstairs, send bennet to distract the other johnson guard by asking him about the copy room.
Then take control of Anna/Ed and ask about the computer panel (or alternatively wait until the officer starts talking to someone on the phone).
When he is distracted, send ray into the next room.
Thanks. Any tips on next stage? City archive seems offline, and i've no idea how to get Johnsen's security code