In this action scene you can see the police escorting …

In this action scene you can see the police escorting an ambulance on a blue light run. Both services are training to transport a high risk prisoner to and from hospital. The police Volvos stay very close to the front and rear of the ambulance. A third police car rides way up ahead and creates a route through traffic and keeps junctions clear. A fourth police car (an unmarked Land Rover Discovery) is out of shot at the rear of the convoy. This could be used to force any bandit vehicles out of the way.