Just an observation.

If RJ in fact did bug the CBI office, I really don't see how it could be Bertram....he could VERY easily do it himself without any suspicion whatsoever.

Does anyone think it had something to do with Jane's statement about always feeling "this place is bugged, wired"?  Perhaps whoever put the PI up to it was doing it to play with Jane.  And that would mean he had been in that office when he said it.