I was airside at Gatwick recently and had an unusual full frame shot of a Virgin B744 on Stand 13 from the empty bussing gate when someone from Menzies came over and asked to see my ID. I explained I wasn't about to do any such thing as we weren't quite living in a Police state and he ought to stop over reacting. His superior came over and asked what I was doing, I explained I just wanted a photo of the aircraft at which point she asked me to wait while she phoned security
What a jobsworth!
I would have politely suggested an operation, whereby she could have had her eyelid surgically removed from her inner rectum to reduce the sh**ty outlook she had on life.
It's not so bad here but in places like Greece and Turkey, popular holiday destinations for us Brits, it can be a nightmare. Use common sense and comply with any signs would be my only advice.