staff only

Right below that, a large, black, stenciled notice proclaimed STAFF ONLY.

He noticed a door that said STAFF ONLY.

On the door was the lettering, UN STAFF ONLY.

Toward the end of the hall, at the right, were two double-width elevators, one key-operated that said STAFF ONLY, the other with a call button, which Hatterson pushed.

He hurried through the dimly-lit foyer, pushing through the double doors marked STAFF ONLY to the left of the ticket-booth and going up the stairs two at a time.

He started walking toward one of the STAFF ONLY entrances, grateful that the skill set of a competent spy overlapped considerably with that of a decorated Starfleet chief engineer.