It's quite shocking to read about the most recent security breach at Buckingham Palace whereby a man was able to scale the 12' perimeter, break his way through a palace door and make it up to the 1st Floor State Rooms. The police are not saying in which room the man was arrested, but it was via a motion detector that alerted the palace guards. And, get this, after questioning the man, they let him go! Apparently he has to appear in court in October, but they let him go. Unbelievable.
How does this happen with the tight security at the palace? I guess it's not tight enough. It must be hard guarding such a large building with so many possible methods of entry. Windsor Castle must be even worse. But, with all the latest technology and the number of guards on duty at any given time it's still shocking that a breach can still happen.