The images shows a pot-bellied man in a distinctive floral shirt viciously swinging the huge blade wildly in the air in Brockley, south London.
As he lurches forward, officers resort to fighting him off with a wheelie bin in an attempt to subdue him.
Homeowners called police after the balding man was spotted standing in the middle of a roundabout holding the lethal weapon.
When officers rushed to the scene, witnessed said the man reappeared 'out of nowhere', waving the blade in the air. Read More