Good work guys. Basically, if you can see it from a public area, you can take a photo of it, (unless it’s your topless neighbour in her backyard or something questionable).

Great video. We have exactly the same problem here in France and even worse, because even our police doesn’t know the rules regarding public spaces and so on.
In some cities, it is strictly forbidden to shoot public stuff and even famous monuments on tripod, without an official agreement (understand : without paying a fee).
And our french policemen are not as polite and as well educated as the english policemen I can see in this video (or those I encountered during my stays in UK).

Rgds, Gilles.