Hostages to fortune

In the small hours the gang silently moved into position, hiding behind large industrial bins. They lay in wait for the lone guard on duty to come out of the depot. When he did, they pounced, bundling him back inside the depot.
The gang made the guard sit at his control desk as normal. They got him to explain how the controls worked. Two armed robbers crouched underneath the desk to make sure he co-operated. 
That morning the guard let the rest of the guards into the depot as usual. But as they walked through the security doors, one by one, they were taken hostage at gun-point, frog-marched downstairs to the guards' locker room, and tied up.
All photographs Metropolitan Police