In looking at the message traffic sent to the RFSS Kommando Stab I noticed that certain Police Battalions were listed but were transmitting their information under cypher. Since the contents of the RFSS were considered today's equivalent of Top Secret what was being transmitted that required a higher level of clearance? Also how was it being transmitted? My guess is Enigma.
I looked a German Navy U-boat Enigma chart and they used a grid system. Heydrich had once been a navy signals officer. I am wondering if the Police and SS may have done the same thing?