The CAA do carry out regular ramp checks. However, these are normally aimed at the Comercial/Aerial work operators. They have visited GA airfields in the past and checked quite alot of aircraft. They also check foreign registered aircraft on behalf of the Dft.
The ramp checks may be done by an Ops inspector, in which case he is looking at the operation, i.e. docs, flight planning, etc or a Surveyor who will be more interested in the condition of the aircraft.
AC & X