Thanks for the correction on the type, I'm sure you're right - for me to recognise a flying machine it needs to be (a) small and fixed wing, or (b) military, or (c) have the type painted in large letters down the side.
I'm aware that rule 5 doesn't apply to police ops, but I assume that no pilot, even if permitted, would break it without good reason - so my curiosity was about what the reason might be. And I couldn't see any particular reason for police to be discrete on the ground when the Helo was making enough noise to wake up half of Oxfordshire and several dozen people had come out of their offices and homes to see what was going on.
But you're probably right RDR, they'll catch me eventually - there are certainly some very odd things in the corners of our cellar.
G