Sunday 29th July at 8:40am and 4:30pm a very strange convoy passed through Parliament Square, London.

It consisted of 2 Police Cars; 30 Police Motorbikes (including some strange Black/Orange Bikers); 3 SUVs full of Police with Machine Guns and... unmarked white Transit Van !!!

What was in the van that needed so many armed Police to guard it ???

Answers on a postcard :)