Thanks for the extra info. There's a few ATC'ers at my unit who would have asked for the Plods to be forcibly removed from the Ops Room for causing a distraction, and therefore introducing a safety hazard
The authorities seem not to know that the airspace they specify is the only airspace they can legislate for entry. Operating right up to the vertical or horizontal limits is not only 'legal', it's a pilots right, should they wish to do so. Of course, allowing a reasonable avoidance margin of error to ensure you don't inadvertantly enter is probably a good piece of airmanship.
Bottom line is, if the authorities want you to stay clear of certain airspace, it's their responsibility to specify it correctly using a reasonable volume of airspace related to any threat or intelligence received. And not add on their own undefined buffers which they try to enforce by threats and bullying.