Riot in Cambridgeshire - all in the name of international relations

As a rioter throws a petrol bomb at police in Cambridgeshire, officers hide behind their shields as they stamp through the flames.

It wasn't necessarily the obvious end of a tour to the region for this Chinese delegation, but it was probably the highlight.

This lively demonstration was staged by Cambridgeshire Police to show off their public disorder tactics.

The delegation had been invited over by the Anglia Ruskin University - which was the first in the country to offer a degree course about the emergency services and major incident planning.

Watch Stuart Leithes' report below.