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...

...an unmarked white Transit Van !!!

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

Answers on a postcard :)