Thanks Tees,
It is encouraging to see that such a longish post is read. That text was in fact written for a keynote speech at Airmed 2000 and has been incorporated into JAR-OPS 3 since January 1st 2002; it cannot be the trigger for this thread.
It is however a little dated as the restriction on HEMS Public Interest Sites, which was to last until 2005, has (due mostly to the German situation) now been replaced by a continuous alleviation (Amendment 3 as at 01/04/04).
(The text from which the extract was taken, was posted into another thread and was in answer to a question whether transplant organs can be carried by any AOC holder (they can of course) but, due to the sharp eyes of Heliport, has been transferred to this one.)
JimL's post is still in place. I copied it here. 
Heliport