It's not even recommended to shift it from one private location to
another - for fear of spreading froggy disease (red leg disease, etc)
from one area to another. .
Have a look at
http://www.froglife.org/

--
ned

Having read the site you refer to the disease problem only affects
frogs, if a pond is over 1 kilometre away from a frog population then
they probably wont reach the pond and its perfectly OK to obtain spawn
from private gardens (although the amphibians are not pets).

What concerns me is that if a pond is isolated and spawn introduced,
then a resultant population will genetically inbred. To overcome this
spawn should be introduced from many genetically different sources, but
how many sources would be needed?

Bell