This has something to do with the data protection act, sensitive information needs to be passed over a secure network..
Raynet thought they had it sussed for local use, encrypted DMR, but their members got hold of all different makes of radio that use encryption that is not standard between makes..
Connect Systems CS750 and CS800, Hytera PD-365, Motorola DP4600.
Raspberry Pi 2 and DV4Mini HotSpot.
AOR AR-DV1 Digital Voice Receiver / eSPY on ARD.
WS1088 / TRX-1 / Whistler Q /UBCD3600XLT.