Slight aside, but whenever I use the radio, each transmission is ended with my callsign. If I were an ATCO and someone was disrupting valid transmissions, i'd want to know who was speaking so I could address them and be sure of getting my point across, rather than a 'to whom it may concern' type transmission. Do the 'police' just speak without identification?
I only ask as I haven't experienced this myself.
Ginger
