An anonymous poster left us this message:
"Well I have to say that at the
place that I work at, seems to be haunted. I and other
employees have seen things more than twice that are not
normal. We have reported it to our boss, but we cant
seem to do anything about it. The problem is allowing
outsiders, it is controlled by goverment, so the
chances of even steping into the building are 0-none."
I would suggest that you try to document these strange happenings yourself. If recording devices don't break the rules of your workplace (though I suspect they might) set up an audio or video recorder. You could take pictures. Barring all of that, I suggest keeping a log or diary of experiences you and your coworkers have had. You might be able to piece together some semblamce of proof with the last method. Best of luck!