The Big Picture
Compared to the thousands of unprotected beaches, harbours, and quiet inlets that make up the UK the 'Airfield ' issues are small,and are in the main 'overseen' by users and the unofficial control of Spotters. who are quite expert at noticing strange happenings anywhere.
With precious few resources available for control of 'strips' and former military fields it is up to the GA fraternity to assist where possible, and ensure we keep our 'freedom' which is of considerable benefit to us all.
As for 'contact' with authorities if there is something to report do not mess about with e-mail or pay for numbers just do the 999 bit, it still works amazingly well, and response times can be very good when needed.The authorities are stretched and we need to protect the freedom we enjoy; its a win win situation.