Is it fair to say that most Police and HEMS Pilots are ex military?
At the beginning of 2011, before all this NPAS malarky started, there were 119 full time Police pilots in the ASUs in England, Wales and NI(I didn't include Scotland for some reason), not counting floaters.
Of the 119, 97 were ex mil with 56 ex Army Air Corps, 19 ex Royal Navy, 11 ex RAF and 11 ex Royal Marines, leaving 22 as "civilian" pilots.
No idea what the numbers are at present.