When one of the "jobsworths" is armed with an MP5 or something similar, is tasked with protecting a high value potential terrorist target and belongs to The Security Service or the Royalty Protection branch (SO14) my policy is to desist from the taking of photographic images forthwith and to absent myself from the scene rapidly! :roll::roll:
http://www.railforums.co.uk/showpost.php?p=1071139&postcount=90