Also from the BHAB site:
Exemptions from the '1,000 foot Rule' could include the use of a landing site in a city centre, aerial photography and survey work as well as police and ambulance operations.
I was under the impression the 1000ft rule was relevent to built up areas?
and included in the "low flying" rules section of the ANO
But you could be right, perhaps I just will not see yet.