Information and guidance regarding Unlicensed Aerodromes and Helicopter Landing Sites
CAP 793 - "Safe Operating Practices at Unlicensed Aerodromes (Including Helicopter Landing sites and Aerodromes Used for Flying Training)" is a comprehensive source of information. It collates the relevant rules and regulations and provides guidance on the following topics:
Complaints should be directed to The Head of Aviation Regulation Enforcement and Investigation Branch, CAA House, 45-59 Kingsway, London, WC2B 6TE.
Before any action is contemplated, positive evidence must be provided in relation to the identity and location of the aircraft.
CAP 168 - "Licensing of Aerodromes"