Canary Wharf - Security

I think the area within the North and South Colonnades, which has the the Underground station in the middle, is patrolled by security officers and may well be owned by the Canary Wharf people, and therefore private land. I was approached by a friendly security officer, who explained that their concern was people taking photographs of entrances to buildings, security camera locations and the like. We parted with a handshake and I carried on.

He meant an entrance like this...

Outside that are I didn't see any security at all. I suspect the use of a tripod within that area requires permission from the Estate management.