Several days ago I heard one Troop B officer on the Troop B dispatch channel request another officer to talk with him on "tac 2". A few moments later, I heard them talking to each other on the tactical 2 channel in the clear. Then, yesterday I heard the dispatcher (on the Troop B dispatch channel) request to speak to an officer on "tac 2". This time, however, I heard nothing on tac 2. Could it be that they can selectively choose whether or not to use encryption? Perhaps when the two officers I heard several days ago simply forgot to encrypt their conversation (I won't repeat what that conversation was but it was sensitive info about some subjects). Any ideas on when ASP uses encryption?