I used to hear the opposite on Inquiry channel, dispatcher encrypted and field units were in the clear. This was before Dispatch 1 went encrypted. I guess they were testing their systems.So, for whatever it's worth, this morning I've noticed I hear one side in the clear on Esc. dispatch.
Might be a fluke like a forgot-to-hit-the-switch type deal or ??
I have to listen closer but it seems like it was the dispatcher in the clear with the field units still encrypted.