yes they do, guaranteed, its just a radio and it would just be jumping through each emergency freq, if they pick up a transmission they can stop the scan on the active channel and listen in, in fact anyone can, it isn't secure comms. If you hear an address you can pump it in to your little laptop and it can do a quick search against your sleaze database and lo and behold it is a celebrity! Benny's address, unconscious, ...bit later taking patient to Epworth hospital, all to easy. Hutchy would know the address by heart anyway.