(2 hours ago)Malarkey wrote Police were fine with the photo as it was clear the subject was the Bus and not the school kids on board or there office block of a school in the background, if they had an issue they would've either made me delete the photos or arrested me, neither happened as provided sufficient proof that I was doing it as part of my hobby.

They can't ask you to delete a photo. They'd need to obtain a court order instructing that.

Seriously, if anyone asks you to delete a photo, you should hold on to it. That's your evidence of the subject of your photo.